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Refraction By Plane Surfaces Free Doubts and Solutions

CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Sir/mam please answer the question in image posted

Asked by kpbhake 25th September 2017, 7:41 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

If two mirrors are inclined at some angle A. An object is placed between the mirrors and there are 5 images formed for an object, then A is may be
1. 45 degree
2. 53 degree
3. 63 degree
4. 75 degree

Asked by rajeshtitu 14th July 2016, 9:16 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

why do stars twinkle?

Asked by Pranav Shankhyan 8th February 2016, 1:14 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

total interna reflection by a plane surface possible????????
how??

Asked by harshwarrier 25th October 2015, 8:18 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

what is the difference between scattering and refraction of lighwaves
 

Asked by Mahesh Gwarrier 12th September 2015, 5:58 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

a small object is placed  10cm  in front  of aplane mirror if you stand behind the object 30cm from the object and look at its image the distance focoused for your eye will be

Asked by Mendy 17th April 2015, 4:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A glass lens of refractive index 1.5 is placed in a trough of liquid. What must be the refractive index of the liquid in order to make the lens disappear?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A glass lens of refractive index 1.45 disappears when immersed in a liquid. What is the value of refractive index of the liquid?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Suppose a ray of light travels from air to glass() at an angle of . Calculate angle of refraction.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What is the Snell's Law of Refraction?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What is the difference between reflection and refraction?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What is the basic cause for refraction?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

When monochromatic light travels from one medium to another its wavelength changes but frequency remains the same. Explain.

Asked by Topperlearning User 21st May 2014, 7:08 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Does the variation in the actual sunrise and sunset affects the day duration?

Asked by Topperlearning User 21st May 2014, 6:52 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

The rising sun is visible to us before actual sun rise and after actual sunset. Why?

Asked by Topperlearning User 21st May 2014, 6:51 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What happens to a ray of light when it travels through a glass slab?

Asked by Topperlearning User 20th May 2014, 3:38 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Prove that apparent depth is ¾ of real depth.

Asked by Topperlearning User 20th May 2014, 3:32 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Why does a tank appear shallower than its actual depth?

Asked by Topperlearning User 20th May 2014, 3:25 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What is refraction? State the three laws of refraction.

Asked by Topperlearning User 20th May 2014, 3:06 PM
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