set 6 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following is the correct angle between the incident and reflected rays when a ray of light incident normally on a plane mirror?

a) 45°

b) 180°

c) 90°

d) 0°

Question : 2

A conducting wire can give magnetic poles when it

a) suspended freely in air

b) bent into the form of a circular ring

c) placed in an external magnetic field

d) All of the above

Question : 3

Magnets attract magnetic substances are iron, nickel, cobalt, etc. They can also repel

a) diamagnetic substances

b) paramagnetic substances

c) ferromagnetic substances

d) non-magnetic substances

Question : 4

A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a

a) plano-converging lens

b) converging lens

c) diverging lens

d) plano-diverging len

Question : 5

The primary cell which is used in daily life is

a) Dry cell

b) Daniel cell

c) Leclanche cell

d) Simple voltaic cell

Question : 6

When a body is charged by induction, then the body

a) does not lose any charge

b) loses whole of the charge on it

c) becomes neutral

d) loses part of the charge on it