What happens to the speed of a cycle when it travels on a rough surface?
(A) Increases
(B) Decreases
(C) Remains the same
(D) None of these
Who has the maximum field of vision?
(A) plane mirror
(B) convex mirror
(C) concave mirror
(D) All of them
Convex lens is used?
(A) To correct the vision defect in human eye
(B) Visionary
(C) under microscope
(D) All of the above
What is the maximum focus distance of the lens?
(A) Green
(B) For red color
(C) yellow
(D) Purple
The majority of lenses have an infinite maximum focus distance (focus at infinity).
In the following is not an example of refraction of light.
(A) Twinkling effect of stars
(B) Mirages
(C) Bending of light while passing through a medium
(D) lateral inversion
The time period of a pendulum –
(A) Depends on the mass
(B) Depends on its length
(C) Depends on time
(D) Depends on temperature
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