Question

True and false 1/2X10=5

A. The star appears shifted from their actual position due to the phenomenon of refraction of light. ( )

B. The eye lens becomes thicker or thinner according to the position of the object. ( )

C. The optical phenomena, twinkling of stars, is due to atmospheric reflection. ( )

D. In optics an object which has higher refractive index is called optically denser. ( )

E. When object moves closer to a concave lens the image by it shift toward the lens. ( )

F. Blue color of the sky is due to the phenomenon of dispersion of light. ( )

G. Pupil controls the amount of light entering an eye. ( )

H. The least distance of distinct vision for a normal person is 1m. ( )

I. The near point for a young adult with normal vision is 25cm. ( )

J. Retina which changes the focal length of eye-lens.




please answer fast​

Answer 1

Answer:

A false

B true

C true

D false