Light Flashcard - Reflection, Refraction and Lens

Front

The velocity of light in vacuum is _______ m/s

Back

3x10⁸

Front

What is the angle of reflection (θ_r) in the image?

Back

34^o

Front

How far away from the patient is the image of the chart in the mirror?

Back

7 m

Front

Characteristics of image formed in a plane mirror: I. Upright II. Inverted III. Real IV. Same size as the object V. Virtual

Back

I, IV, V

Front

Why does a pencil appear broken when placed in a cup of water?

Back

bends when it passes through water

Front

A light ray is incident from water to air. Which of the refracted rays is correct? Options: A, B, C, D

Back

D

Front

Which factor contributes to the bending of light?

Back

Change of speed of light

Front

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

Back

diamond

Front

Expression to find the refractive index of a glass block when a light ray is incident.

Back

sin p / sin s

Front

When the light passes out of the glass, back into the air

Back

It bends away from the normal