CBSE X Physics Light - Reflection and Refraction
1) Is R=2f applicable for mirror and lens both?
2)Is m=height of image/height of object applicable for both mirror and lens?
Urgent please thanks for assistance.
Asked by Kumar Harshvardhan
11th February 2015
8:50 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
why is the magnification of real images taken as negative and for virtual it is taken as positive?
Asked by Shagun Rastogi
3rd March 2015
7:33 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
a thin rod of length f/3 is placed along the optical axis of a concave mirror of focal length f such that its image which is real and elongated just touches the rod. calculate the magnification.
Asked by apurva151
14th June 2015
6:25 PM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
give an example of mirror whose magnification is -1
Asked by Navya Benny
21st July 2015
10:38 PM
Answered by Expert
CBSE XII Science Physics
linear magnification of a mirror is -v/u and in the lens, it is v/u. why is negative in the mirror and positive in the lens. explain in detail
Asked by modi72879
17th November 2017
7:17 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A small object is placed in front of convex lens of 10 cm focal length, such that a virtual image is formed at a distance of 25cm....find it's magnification!!
Asked by shamim.ayanahmad
26th December 2017
11:15 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
State the expression for lateral magniification of a concave in te terms of object distance and image distance.(mirror/len is not given.) Also what do ou mean by lateral magnification?
Asked by sucharitasahoo1
4th February 2018
7:47 AM
Answered by Expert
CBSE XII Science Physics
Dear sir, when we use the formula m=D/u instead of using m=1+D/f for the magnification of a simple microscope please explain in detail.
Asked by modi72879
23rd February 2018
9:50 PM
Answered by Expert
ICSE X Physics
Define the term magnification
Asked by lovemaan5500
15th March 2018
7:22 AM
Answered by Expert
JEE Plances JEE (Main) Physics
plz solve the question with explanation
Asked by futureisbright051101
11th April 2018
6:49 AM
Answer Verified by Expert
CBSE X Physics
Define linear magnification for spherical mirror and write it's formula.
Asked by ABHILASHA
13th May 2018
10:43 AM
Answered by Expert
CBSE X Physics
A magnifying lens of focal length of 20 cm is held 10 cm away from the object 0.25 cm l9ng. Find the position, nature of the image, power and magnification of the lens.
Asked by lakhinandanbora21590
11th July 2018
11:35 PM
Answered by Expert
ICSE IX Physics
The magnification for a mirror is -3. How are u and v related? please explain
Asked by veenamohan3093
1st September 2018
8:31 PM
Answered by Expert
Maharashtra IX Science
what is magnificence of a mirror?
Asked by grajderkar
6th October 2018
8:49 AM
Answered by Expert
CBSE VIII Science
an object is placed 10cm from a concave mirror . The focal length is 5 cm . Determine (a) the image distance (b) the magnification of image.
Asked by kavyalalala2005
29th November 2018
7:42 PM
Answered by Expert
ICSE X Physics Refraction Through a Lens
how can we increase the magnification of a biconvex lens
Asked by nidhimehendre
6th January 2019
6:08 PM
Answered by Expert
JEE Main Physics
Please explain with ray diagram
Asked by himanshuneb
25th January 2019
11:11 AM
Answered by Expert
JEE Main Physics
Please explain with ray diagram
Asked by himanshuneb
5th February 2019
10:42 PM
Answered by Expert
CBSE XII Science Physics
For which position of the object magnification of convex lens is minus one
Asked by rakeshgowda51088
1st March 2019
8:53 PM
Answered by Expert
ICSE X Physics Refraction Through a Lens
Q. An object is placed at a distance of 24 cm in front of a convex lens of focal length 8 cm. (i) What is the nature of the image formed? (ii) Calculate the distance of the image from the lens. (iii) Calculate the magnification of the image.
Asked by akshushashu123
6th March 2019
10:00 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
What is the importance of magnification. Explain by giving examples.
Asked by rushabhjain.av
10th March 2019
9:10 PM
Answered by Expert
JEE Main Physics Optics
Q.Solve the question in photo
Asked by Vidushi412
16th March 2019
12:28 PM
Answered by Expert
JEE Main Physics
Figure shows a small block suspended vertically using an ideal spring. Initially spring is in natural lenght and the mass is 1 mm above the principal axis of a concave mirror whose focal lenght is 20 cm. given the mass m=10grams, k=100N/m, g=10
, the amplitude of the image of the block formed by concave mirror is A millimetres, find the integer value "A".
Asked by ggroy
18th March 2019
7:27 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
a concave mirror produces three times magnified(enlarged)real image of an object placed at 10 cm in front of it.where is the image located?
Asked by rohitguptagtkk
18th March 2019
8:36 PM
Answered by Expert
JEE Main Physics Optics
solve
Asked by sarveshvibrantacademy
7th May 2019
11:55 AM
Answered by Expert
JEE Main Physics Optics
solve
Asked by sarveshvibrantacademy
7th May 2019
12:01 PM
Answered by Expert
CBSE XI Science Physics Waves
A photograph of a house occupied an area of 1.75 sq.cm on a 35mm slide.The slide is projected on to a screen and the area of the house on the screen is 1.55 sq.m.What is the linear magnification of the projector-screen system?
Asked by pb_ckt
22nd May 2019
10:19 AM
Answered by Expert
CBSE XII Science Physics Wave Optics
An object is placed at 10 cm distance infront of a concave mirror of radius of curvature of 20 cm. Find the position,nature and magnification of the image.
Asked by av601070
27th May 2019
2:52 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
what is magnification producer?
Asked by samutthita
3rd June 2019
10:06 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A candle is kept 49 CM away from a spherical convex mirror of radius of curvature 70cm find image formed and its magnification
Asked by ravishankar.lala
15th June 2019
10:03 PM
Answered by Expert
NEET NEET Physics
An Astronomical Telescope Has Focal Lengths 100 & 10 Cm Of Objective And Eyepiece Lens Respectively When Final Image Is Formed At Least Distance Of Distinct Vision, Magnifying Power Of Telescope Will Be.
Asked by semboy65ks
4th July 2019
5:40 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
The magnification of plane mirror is always
Asked by amiteshdubey147
18th July 2019
9:28 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A concave lens has focal length of 20 cm. At what distance from the lens a 5 cm tall object be placed so that it forms an image at 15 cm from the lens ? Also calculate the size of the image formed.
Asked by muchu.mkk12345
21st July 2019
10:53 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
What is the general value of magnification in lens and mirror
Asked by mohankumarm435
29th August 2019
11:22 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A concave mirror has a magnification of -2.5 if its focal length is 20 cm find its image and object position?
Asked by ajajaysanja
23rd October 2019
11:00 AM
Answered by Expert
CBSE XII Science Physics
The compound microscope has focal length of objective and eyepiece are 3cm and 5cm. Small object is placed at 4cm from the objective. Find the M.P if final image is at D.D.V?
Asked by manisha.deshingkar
9th November 2019
8:55 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
an object is placed in front of a concave mirror of focal length 20 cm the image formed is 3 times the size, of object calcualte two possible dostances of object from the mirror
Asked by priyankakachawar79
19th November 2019
6:28 PM
Answered by Expert
ICSE IX Science
The erect image formed by a concave mirror is of size double the size of object .Howare u and v rel.ated
Asked by anilrktnayak
27th December 2019
4:57 PM
Answered by Expert
CBSE XII Science Physics
Derive the relation between linear and longitudinal magnification
Asked by sanskrutisahu300
12th January 2020
11:26 AM
Answered by Expert
CBSE X Physics
In order to obtain a magnification of -3(minus 3) with a convex lens, the object should be kept at:- (a)between optical centre and F (b)between f & 2f (c)at 2f (d)Beyond 2f
Asked by www.nameer
7th February 2020
9:12 PM
Answered by Expert
CBSE X Physics
If the magnification of a mirror m=-1, what do you understand?
Asked by ushasugu60051
1st April 2020
9:00 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
Is there any ratio for size of object in Convex mirror and real size of object ?
Asked by adipadmakarri
1st May 2020
12:45 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
Is magnification =f/f-u (or) f/u-f
Asked by hrushithagowda432
11th May 2020
6:32 PM
Answered by Expert
CBSE IX Maths Number System
Visualise 3.756 on number line using successive magnification
Asked by shubh3964
16th June 2020
8:48 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
The object 5cm high is placed in front of a lens of power +2D. Two times real and magnified image of the object is attained by the lens. Find 1)Object distance 2)Image distance 3)height of the image
Asked by katariayash1212
17th June 2020
1:06 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A spherical mirror produces an image of magnification -1.0 on a screen placed at a distance of 30 cm from the pole of the mirror. a) Write the type of mirror used. b) What is the focal length of this mirror? c) Calculate the object distance. d) What is the nature of the image formed? e) Draw the ray diagram to show the image formation.
Asked by harishsrinivasan0769
22nd July 2020
2:40 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
f
Asked by durgeshsri8080
1st August 2020
6:43 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
An object 50cm tall is placed on the principal axis of a convex lens.Its 20cm tall image
Asked by Thanushri.pcs
1st August 2020
8:11 PM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
Find the maximum magnifying power of a compound microscope having a 25 diopter lens as the objective, a 5 diopter lens as the eyepiece and the separation 30 cm between the two lenses. The least distance for clear vision is 25 cm.
Asked by ABHILASHA
15th September 2020
6:23 PM
Answered by Expert
CBSE XII Science Physics
Q - 10
Asked by majethiyarishat9566.12sdatl
18th September 2020
12:57 PM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
Define and write expression for magnifying power of an astronomical telescope in normal adjustment (i,e, when the final image is formed at infinity)
Asked by khanhill543
31st December 2020
12:20 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A concave mirror produces three times magnified (enlarged) real image of an object placed at 10cm in front of it . Where is the image located?
Asked by grexiemalinnie
17th January 2021
9:15 AM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
a thin stick of length f/5 is placed along principle axis of a concave mirror of focal length f such that it's image which is real and elongated just touches the stick .what is the magnification
Asked by amishavasave56.12dgatl
27th August 2021
5:25 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
A 4.0 cm tall object is placed perpendicular ( e.at 90) to the principal axis of a convex lens of food length 10 cm . The distance of the object from the lens is 15cm. Find the math, position and size of the image.Also find its magnification.
Asked by Jethanleapon
3rd October 2021
7:35 PM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
derive an expression for the magnifying power of an astronomical telescope in normal adjustment?
Asked by shijurlytepz
12th October 2021
6:56 PM
Answered by Expert
CBSE XII Science Physics Ray Optics and Optical Instruments
derive the expression for the magnifying Power and the length of a compound microscope using two convex lenses.
Asked by kamleshstarone392
16th April 2022
6:26 AM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
what is the magnification of the image when v=30 cm and u= 15cm
Asked by bubbynaik77
29th September 2023
9:34 PM
Answered by Expert
CBSE X Physics Light - Reflection and Refraction
The image of a candle flame placed at a distance of 30 cm from a spherical lens is formed on a screen placed at a distance of 60 cm from the lens. If the height of the flame is 2.4 cm,find the height of its image
Asked by namish1088
16th November 2023
8:09 PM
Answered by Expert
NEET NEET Physics Optics
a telescope has an objective lens of focal length 150cm and an eyepiece of focal length 5cm.if his telescope is used to view a 100m high tower 30km away,find the height of final image when it is formed 25cm away from the eyepiece
Asked by hibasherinichu
23rd December 2023
7:02 AM
Answered by Expert
CBSE X Science Light - Reflection and Refraction
2md question
Asked by hemchandvadde
14th April 2024
4:12 PM
Answered by Expert
