CBSE IX Physics Sound
In a ripple tank, 10 ripples are produced per second. If the distance between a trough and a neighbouring crest is 12 cm, calculate the frequency, wavelength and velocity of the wave
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9th March 2015
12:00 PM
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NEET1 NEET1 Physics Electronic Devices
Q.How Amplitude modulation achieved?
B. THE FREQUENCIES OF TWOSIDE BANDS IN AN AM WAVE ARE 640KHZ AND 660KHZ RESPECTIVELY.FIND THE FREQUENCIES OF CARRIER AND MODULATING SIGNAL.WHAT IS THE BANDWIDTH REQUIRED FOR AMPITUDE MODULATION?
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26th November 2017
8:29 AM
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ICSE IX Physics Propagation of Sound Waves
From the diagram calculate i) Velocity of P and Q
ii) frequency of P when frequency of Q is 512 Hz
Assume that both waves are travellin in the same medium
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12th December 2017
6:05 PM
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CBSE X Maths Statistics
Answer the following
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8th January 2018
3:20 AM
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CBSE IX Maths Statistics
find missing frequency if mean is 1.46 and values of xi are 0 1 2 3 4 5 and fi are 46 x y 25 10 5 = 200
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31st January 2018
12:58 AM
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CBSE IX Maths Statistics
Find p if mean is 40.4 and xi 10 20 30 40 50 60 70 and fi 3 8 12 5 p 7 5
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31st January 2018
1:12 AM
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JEE Plances JEE (Main) Physics
a wave trallelling along a string is decided by.... y=0.25*1/1000 sin(500t-0.025x) calculate 1)Amplitude 2)Wavelength 3) the period and frequency of the wave
Asked by futureisbright051101
3rd March 2018
8:20 PM
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JEE Plances JEE (Main) Physics
show that when a string fixed as its two ends vibrates in 1 loop,2 loop,3loop and 4loops. the frequencies are in the ratio 1:2:3:4
Asked by futureisbright051101
4th March 2018
7:05 PM
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CBSE XII Science Physics
Fifty six tuning forks are arranged in a series such that each fork gives 6 beats per second with the preceding one. Assuming the frequency of the last fork to be double of the first fork, the frequency of the last fork should be (a) 220Hz (b) 330Hz (c) 440Hz (d) 660Hz
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25th April 2018
7:01 PM
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CBSE XII Science Physics
a body of mass m when hung from a long and light spring stretches by 20 cm the period of vibration of mass when pulled down and release
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31st May 2018
9:38 PM
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CBSE XI Science Physics
The frequency f of vibration of stretched string depends on its length L, its mass per unit length M and the tension T ,in the string obtain dimensionally an expression for frequency f.
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8th July 2018
5:52 PM
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CBSE XI Science Physics Oscillations
The frequency 'n' of vibration of stretched string depends on its length 'L' its mass per unit length 'm' and the tension 'T' in the string obtain dimensionally an expression for frequency 'n'.
Asked by jullypradhan001
5th August 2018
11:48 PM
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ICSE VIII Physics Sound
state the factors on which the frequency of a stringed depends?
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8th August 2018
12:23 PM
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ICSE VIII Physics Sound
two guitars A and B have strings of length 10cm and 15cm each. which among the two has higher frequency and pitch?
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8th August 2018
12:25 PM
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CBSE XI Commerce Maths
C.I fricancy 10-20 4 20-30 x 30-40 2 40-50 1 Mean=25 find out missing fricancy
Asked by Himanshu
24th August 2018
1:03 AM
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CBSE XI Science Chemistry Structure of Atom
find the number of quanta of radiation of frequency 4.75* 10 sec inverse required to melt 100 g of ice the energy required to melt 1 g of ice is 350 joule
Asked by sejalchawhan8
29th August 2018
9:07 PM
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ICSE VIII Physics Sound
Two waves have frequencies 256hz and 512hz but same amplitude compare their loudness and pitcn
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21st September 2018
5:19 PM
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ICSE VIII Physics
how do following factors effect the velocity of sound in air i) pitch ii) frequency iii) loudness iv) amplitude
Asked by Abhishek
20th November 2018
3:47 PM
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JEE Plances JEE (Main) Physics
Sir pls solve this question.
Asked by rsudipto
14th December 2018
9:49 AM
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CBSE XI Science Physics Waves
Answer 23rd ques plz
Asked by lovemaan5500
7th January 2019
7:38 AM
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CBSE XI Science Physics Waves
19th sum plz
Asked by lovemaan5500
7th January 2019
7:39 AM
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CBSE XI Science Physics Waves
9th sum
Asked by lovemaan5500
7th January 2019
7:40 AM
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ICSE IX Physics Propagation of Sound Waves
The freqency is 200hz.what time period?
Asked by Surajyadav1665
7th January 2019
7:58 AM
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Maharashtra IX Maths
in the given table class width and frquency are given .construct the frquency table taking inclusive and exclusive classes. class width frequency 5 3 15 9 25 15 35 13
Asked by planetsystems2010
10th January 2019
8:58 PM
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CBSE IX Physics Sound
Soundwaves of wavelength X travel from a medium in which velocity is Vm/s into another medium in which if velocity is 3m/s, what is the wavelength of sound in the second medium?
Asked by pkdhillondr
2nd February 2019
2:23 PM
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CBSE X Maths Statistics
Find the mean and mode for the following data : Classes 10 – 20 20 – 30 30 – 40 40 – 50 50 – 60 60 – 70 – 80 Frequency 4, 8,, 10 ,12, 10 ,4, 2
Asked by gopvind
28th February 2019
5:05 PM
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CBSE VIII Science Sound
For a simple pendulum; define:- a) One oscillation b) Time period c) Frequency
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9th March 2019
7:34 PM
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Maharashtra X Science
It is essential to change the tension on the vocal cords , as we produce different sounds notes from our larynx .
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9th March 2019
7:48 PM
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JEE Main Physics
Solve the question in photo
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4th April 2019
11:50 AM
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JEE Main Physics
solve the following
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5th April 2019
10:28 AM
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NEET NEET Physics Oscillations and Waves
Pls answer the follinfi.
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25th April 2019
7:03 PM
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CBSE VIII Science Sound
How do loudness and pitch of sound depend on amplitude and frequency respectively?
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19th May 2019
6:10 PM
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CBSE XI Science Chemistry Structure of Atom
Kinetic energy of an electron emitted when radiation of frequency v= 1.25 x10^15 strikes the metal surface whose threshold frequency v0 = 7.25 x 10^14 is
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29th June 2019
8:42 PM
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CBSE XI Science Chemistry Structure of Atom
The frequency of the radiation emitted when electron falls from infinity to n=1 state for he+ would be
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8th July 2019
8:11 PM
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NEET NEET Physics
The displacement of a particle along the x-axis is given by x = a sin^2wt. The motion of the particle corresponds to:- (1) Simple harmonic motion of frequency w/π, (2) Simple harmonic motion of frequency 3w/2π, (3) Non simple harmonic motion, (4) Simple harmonic motion of frequency w/2π.
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9th July 2019
12:50 PM
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NEET NEET Chemistry Atomic Structure
⭕Find the wrong equation 1) frequency is inversely proportional to lembda. 2)∆E= hc/lembda 3)wave No° is inversely proportional to lembda 4)wave No°= ∆E/hc ..✔️✔️...Help me in this ..Thanks😊
Asked by jhajuhi19
31st July 2019
9:17 AM
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CBSE XI Science Chemistry Structure of Atom
The frequency of a light whose wavelength is 12 metres is
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13th August 2019
1:14 PM
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ICSE IX Physics Propagation of Sound Waves
The time period of a simple pendulum is 2s.Find it's frequency.
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27th December 2019
4:48 PM
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ICSE IX Physics Propagation of Sound Waves
The heart of a man beats 75 times a minute .What is it's (a) frequency and (b) time period?
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27th December 2019
4:50 PM
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ICSE IX Physics Propagation of Sound Waves
A source of wave produces 40 crests and 40 troughs in 0.4 s.What is the frequency of the wave?
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27th December 2019
4:51 PM
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ICSE IX Physics Propagation of Sound Waves
A wave has amplitude equal to 8 cm and the wavelength of 2 m the frequency of the wave is 150 Hz. (i) Draw the graph of the wave representing displacement and distance. (ii) Calculate the velocity.
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31st December 2019
2:22 PM
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CBSE XII Science Physics
If angular acceleration= -mB theta/I How is Omega that is angular velocity= √(mB/I)
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19th February 2020
12:22 AM
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CBSE IX Physics Sound
Formula for frequency
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29th February 2020
5:14 PM
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ICSE X Physics Sound
Derivation between f=1/t.
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3rd April 2020
2:26 PM
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ICSE X Physics Sound
Derive relation between -wavelength ,wave velocity and frequency.
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3rd April 2020
2:28 PM
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NEET NEET Biology Evolution
If the gene frequency for PTC nontasters is 0.4, then what will be the no. of heterozygotes tasters in a population of 4000 ? (1) 1440 (2) 1920 (3) 1080 (4) 2520
Asked by Prashant DIGHE
16th April 2020
10:11 PM
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ICSE VII Physics Sound
I didnot understand the relation between speed and V.
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26th April 2020
3:05 PM
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NEET NEET Physics
please answer this (multiple options are correct)
Asked by Prashant DIGHE
29th May 2020
10:17 PM
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ICSE X Science
exercise 6a numerical 1
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31st May 2020
10:18 PM
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ICSE X Science
exeecise 6a numerical 2
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31st May 2020
10:20 PM
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CBSE XI Science Chemistry Structure of Atom
Dear, It is given that...lesser the wavelenth is....higher the intensity will be. But we know that lesser wavelength means higher frequency. So my douybt is....why it is that "The no.of electrons ejected per second from the metal surface depend upon the intensity of incident radiation but does not depend upon its frequency"? (acc to photoelectronic effect) WHY? Pls clarify,
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12th August 2020
11:43 PM
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ICSE IX Physics Propagation of Sound Waves
A source of wave produce 40 created 20 throughs in 0.45 seconds what is the frequency of the wave??
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9th October 2020
4:42 PM
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ICSE X Physics
A body vibrates 30 times in 0.3 seconds about its mean position. What is the frequency of the body?
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5th March 2021
12:36 PM
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CBSE XI Science Physics
A particle of mass m moving in a field of conservative force with potential energy given by u = a + bx^2 J/Kg is performing SHM. then the frequency of the shm can be
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7th March 2021
1:19 PM
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CBSE XI Science Physics Waves
show that in the case of closed organ pipe, the ratio of the frequencies of the harmonics is 1:3:5:7.
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22nd March 2021
9:20 AM
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CBSE XI Science Physics Waves
The frequency is directly proportional to length multiplied by tension and mass in the length of string .derive the formula of frequency
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12th May 2021
9:24 PM
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JEE Main Physics Kinematics
A cylindrical block of mass m and height h floats vertically in a liquid which is twice as dense as the block, as shown in the figure. A uniform rod of mass m/2 and length I is hinged to axis of the cylinder at A and to the wall of the vessel at B. The rod can rotate freely about point B. It is observed that the rod is horizontal in its equilibrium position. Angular frequency of small vertical oscillations of the cylinder will be m/2 B 12g V 7h
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9th April 2022
8:43 AM
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CBSE XI Science Physics Waves
how to prove that the frequencies produced in the string are in the ratio 1:2:3
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17th April 2022
7:23 PM
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ICSE X Physics Sound
What adjustments would you make for tuninga stringed instrument for it to emit a note of desired frequency?
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5th August 2022
6:56 PM
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NEET NEET Physics Electromagnetic Induction and Alternating Currents
in a series LCR circuit the inductance l is 10mH capacitance is 1micro F and resistance is 100ohm the frequency at which resonance occurs is
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1st November 2023
5:07 PM
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NEET NEET Chemistry Atomic Structure
The frequency of electromagnetic radiation of wave number 10^4 cm
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8th January 2024
10:40 PM
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JEE Main Chemistry Atomic Structure
the frequency associated with a photon of radiation having a wavelength of 6000 A is
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19th April 2024
1:21 PM
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