7 - Reflection and Total Internal Reflection Questions Answers

The sun subtends an angle of 30 at the vertex of a concave mirror of radius of curvature 36m.Find the size of the image of the Sun

 

Asked By: ULLAS 3 year ago
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A man is walking under an inclined mirror at a constant velocity Vms-1s.along the X axis. If the mirror is inclined at an angle θ with the horizontal, then what is the velocity of the image?.

Asked By: AKSHITI PARASHAR 4 year ago
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A beam of light of frequency w is reflected from a dielectric-metal interface at normal incidence. The refractive index of the dielectric  medium is n and that of the metal is n2 = n(1+ip). If the beam is  polarized parallel to the interface, then the phase change experienced by the light upon reflection is.
Asked By: BEENA BHATT 4 year ago
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Asked By: KINJAL OJHA 4 year ago
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A flat mirror revolves at a constant angular velocity making 2 revolution/sec. With what velocity will a light spot move along a Spherical screen with a radius of 10 m, if the mirror is at a centre of curvature of the screen ?

Asked By: KINJAL OJHA 4 year ago
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when two plane mirror inclined to each other at an angle 60degree , the number of image =?

please explain with ray diagram .

Asked By: ASHOK SOLANKI 5 year ago
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Answer Strategies and trick by Manish sir (it will help you to solve it by yourself)

angle is 60

if object is placed symmetrical then images = 360/60 - 1 = 5

if unsymmetrical then 360/60 = 6

Focsl length of lens depends on colour of light?

Asked By: NIKHIL VARSHNEY 6 year ago
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Answer Strategies and trick by Manish sir (it will help you to solve it by yourself)

Yes, f depends on µ and µ depends on colour of light

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