NCERT MCQs for Class 10 Science Chapter 10 Light Reflection and Refraction contains answers to the important objective questions drafted by Web Tutors Point.
(A) Go into the water without deviating from its path
(B) deviate away from the normal
(C) Deviate towards the normal
(D) turn back on its original path
Answer is C: A ray bends in the direction of normal as it moves from the rarer medium of air to the denser medium of water.
A. both concave
B. both convex
C. the mirror is concave and the lens is convex
D. the mirror is convex and the lens is concave
Ans. is A: both concave
A. both are convex
B. The lens is convex and the mirror is concave
C. The lens is concave and the mirror is convex
D. Both are concave
Ans. is A: Both are convex
A. greater than 18
B. smaller than 18
C. greater than 36
D. less than 36
Ans. is A.
A. is always real
B. may be real or virtual
C. is always virtual
D. is always erect
Ans. is B.
A. is always real
B. may be real or virtual
C. is always virtual
D. is always erect
Answer: D
A. A convex lens of focal length 2 m
B. A convex length of focal length 0.5 m
C. A concave lens of focal length 2m
D. A concave length of focal length 0.5 m
Ans. is A. Use P = 1/f
A. the cornea
B. the crystalline lens
C. the vitreous humour
D. various surface in the eye
Ans: B
A. focal length of the eye-lens
B. shape of the crystalline lens
C. opening of the pupil
D. optic nerve
Ans: C
A. presbyopia
B. far-sightedness
C. Near-sightedness
D. Astigmatism
Ans: A