Wavelength

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

CBSE XI Science Physics Thermal Properties of Matter

Find the ratio of rate of radiations from two solid sphere having ratio of radius 2:1 and ratio of wavelength of radiations of maximum intensity 1:2?

 

{1} 8:1

{2} 27:1

{3} 64:1

{4} 25:1

CBSE XII Science Physics Dual Nature of Radiation and Matter

a proton and alpha particle is accelerated through the same potential which one of the two has

1) greater value of de-Broglie wavelength associated with it?

2) less kinetic energy?

 

 

 

 

 

 

 

 

 

 

 

 

NEET1 NEET1 Chemistry Atomic Structure

Q

CBSE XII Science Physics

An electron and a proton have same kinetic energy. Which of the two has a greater wavelength? Explain.

CBSE XII Science Physics

show graphically the variation of de broglie wavelenth with the potential throgh which an electron accelerated from rest?

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

CBSE IX Physics

CBSE VIII Science

which unit is used to measure wave length ?

CBSE XI Science Chemistry Structure of Atom

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CBSE XI Science Chemistry Structure of Atom

8?

CBSE XI Science Chemistry Structure of Atom

9?

CBSE XI Science Physics Physical World

Wavelength of Alpha - line of Balmer series is 6500 angstrom. The wavelength of gamma-line is ?(for hydrogen atom)

CBSE XI Science Chemistry Structure of Atom

The wavelength of an electron revolving in the 3rd orbit of Be3+ is 'x' . The radius of first Bohr orbit in H atom is k , then 'x' is equal to ?

NEET1 Crash Course Chemistry

I don't want to know the solution but I just want to know how to proceed with this numerical from atomic structure Question: it has been found that gaseous iodine molecules dissociate into iodine stomach after absorption of light at wavelength 4995 A. The energy required to dissociate 1 mole of iodine molecules is?   

ICSE VIII Physics Sound

define wavelength

CBSE XII Science Chemistry Atomic Structure

If the shortest wavelength in Lyman series of hydrogen atom is A, then the longest wavelength in Paschen series of He+ is :

CBSE XI Science Physics Waves

Answer 23rd ques plz

CBSE XI Science Physics Waves

19th sum plz

CBSE XI Science Physics Waves

9th sum

CBSE XI Science Physics Waves

2nd sum

CBSE XI Science Physics

A wave of frequency 500 hz travels between X and Y and travel a distance 600 m in 2 sec between X and Y . How many wavelengths are there in distance XY??  

CBSE VIII Science

Represent a wave graphically.Show the diagram the wavelength and amplitude.  

ICSE X Physics

Difference between PD across the terminals. and PD between the terminals? 20 waves pass through a point in 2s.If the distance between one crest and adjacent trough is 1.5m.Calculate its  wavelength. wavelength is 3m or 1.5 m??

JEE Main Physics

plz solve the question shown below

NEET NEET Physics Optics

Q8  

CBSE XI Science Chemistry Structure of Atom

Please solve the doubt in the image uploaded below.

JEE Main Chemistry Atomic Structure

The dissociation energy of H2 is 430.53 k J rnol-1 . If H2 is exposed to radiation energy of wavelength 253.7 nm, what % of radiant energy will be converted into kinetic energy?

CBSE XI Science Chemistry Structure of Atom

Light of wavelength 1281.8nm is emitted when an electron of hydrogen atom drops from 5th to 3rd energy level calculate the wavelength of the photon emitted when electron falls from 3rd to ground level. 

CBSE XI Science Chemistry Structure of Atom

The de broglie wavelength of a particle with mass 1kg and velocity 100m/s is 

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

NEET NEET Chemistry Atomic Structure

The wave length of two photons A and B are 100 angstroms and 1000 angstroms.The ratio of their enegries will be

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😊

NEET NEET Chemistry Atomic Structure

A photon of 300 NM is absorbed by a gas and then reemitted two photons. One of the remitted photon has wave length 496nm,then the other photon has  

CBSE XI Science Chemistry Structure of Atom

The frequency of a light whose wavelength is 12 metres is

CBSE XI Science Chemistry Structure of Atom

A light of wavelength 3 × 10 ^- 7 strikes a metal surface. the energy of incident light in electron volt is

CBSE XI Science Chemistry Structure of Atom

The de Broglie wavelength of an electron travelling with 20% of velocity of light is nearly equal to

NEET NEET Physics

Please solve

NEET NEET Physics

Solutions sir

CBSE XII Science Physics

Find the de-Broglie wavelength associated with neutrons in thermal equilibrium with matter at 300K. 

CBSE XII Science Physics

Ques 9 a part(circled one)

NEET NEET Chemistry Co-ordination Compounds

please answer this

ICSE X Physics Sound

Derive relation between -wavelength ,wave velocity and frequency.

CBSE XI Science Chemistry Atomic Structure

please answer this

ICSE VII Physics Sound

I didnot understand the relation between speed and V.

CBSE XI Science Chemistry Structure of Atom

The wavelength of a spectral line for an electronic transition is inversely proportional to : (1) number of electrons undergoing transition (2) the nuclear charge of the atom (3) the velocity of an electron undergoing transition (4) the difference in the energy involved in the transition

ICSE X Science

exeecise 6a numerical 2

CBSE XI Science Chemistry Structure of Atom

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CBSE XI Science Chemistry Structure of Atom

please help asap

CBSE XI Science Chemistry Structure of Atom

chemistry atomicstructure

CBSE XI Science Chemistry Structure of Atom

Prove that if uncertainty in position of a moving electron is equal to its de-Broglie wavelength than its velocity is completely uncertain?

JEE Main Chemistry Atomic Structure

If the kinetic energy of electron increases by 44% find the percentage change in De-Brogile's wavelength

CBSE XI Science Physics Thermal Properties of Matter

A furnace emits radiation at 2000 K. Treating it as black body radiation, calculate Wave length at which emission is maximum and the corresponding radiant flux density

NEET NEET Physics Atoms and Nuclei

In which of the following transition the wavelength be minimum ? a)n=5 to n=4 b)n=4 to n=3 c)n=3 to n=2 d)n=2 to n=1

ICSE IX Physics Measurements and Experimentation

The wavelength of light is 589nm. What is its wavelength in Å.

CBSE XII Science Physics Atoms

consider a hypothesis H-like atom, the wavelength in Amstrong for the spectral lines for the transition from n=p to n=1 is given as  wavelength =1500p^2/p^2 -1 where p>1 find the minimum and maximum wavelength

NEET NEET Chemistry Atomic Structure

900 nm wavelength radiation is used in the treatment to relieve muscle pain. So which of the following is similar to this wavelength radiation? (A) Balmer (infinity to 2) (B) Lyman (infinty to 1) (C) paschen (5 to 3) (D) paschen (infinity to 3)

CBSE XII Science Physics Dual Nature of Radiation and Matter

potential difference v is applied across x-ray tube IF e/m is the charge to mass ratio of an e & c is the speed of ligh in vacum the ratio of the de broghlie wavelength of incident electrons to the shortest wavelength of x-rays produced is given by

CBSE XI Science Physics Units and Measurement

Calculate the wave number of a wave with a frequency of 6.2 *10^7

NEET NEET Physics Atoms and Nuclei

q

JEE Main Chemistry Atomic Structure

the frequency associated with a photon of radiation having a wavelength of 6000 A is