Light reflection and refraction Worksheet-27
A. Between Y and O B. At Y
C. Between X and Y D. At X
The optical component is a :
A. Concave lens B. Convex lens
C. Convex mirror D. Prism
A. The bending of light rays when they enter from one medium to another medium
B. Splitting of white light into seven colours when it passes through prism
C. Bending of light round corners of obstacles and apertures
D. Coming back of light round corners of obstacles and apertures
(i) When light travels from diamond to glass.
(ii) When light travels from glass to water.
(iii) When light travels from water to air.
A. When light travels from glass to water. and When light travels from water to air.
B. When light travels from diamond to glass. and When light travels from glass to water.
C. When light travels from diamond to glass., When light travels from glass to water.and When light travels from water to air.
D. When light travels from diamond to glass. and When light travels from water to air.
A. Plane B. Concave C. Convex D. Plane or concave
A. 10.2 cm B. 11.0 cm C. 11.4 cm D. 12.2 cm
A. complete B. brighter
C. dimmer D. complete but dimmer
1. looked heads of P1 and P2 while placing P3 and heads P1, P2 and P3 while placing P4
2. looked heads of P1 and P2 while placing P3 and feet of P1, P2 and P3 while placing P4
3. looked heads of P1 and P2 while placing P3 and feet of all the pins while placing P4
4. looked feet of P1 and P2 while placing P3 and heads of all the pins while placing P4
A. 1. looked heads of P1 and P2 while placing P3 and heads P1, P2 and P3 while placing P4
B. 2. looked heads of P1 and P2 while placing P3 and feet of P1, P2 and P3 while placing P4
C. 3. looked heads of P1 and P2 while placing P3 and feet of all the pins while placing P4
D. 4. looked feet of P1 and P2 while placing P3 and heads of all the pins while placing P4
A.
B.
C.
D.
A. the screen away from the lens
B. the lens away from the lens
C. the screen towards the lens
D. Both lens and screen towards the distant lamp
Answer Key: