set 8 MCQ Questions & Answers Detailed Explanation

Question : 1

Sound moves with higher velocity if

a) temperature of the medium is increased

b) pressure of the medium is decreased

c) humidity of the medium is increased

d) Both (a) and (c) above

Question : 2

What is the purpose of ‘evolved Laser Interferometer Space Antenna (eLISA)’ project?

a) To detect gravitational waves

b) To detect the effectiveness of missile defence system

c) To detect neutrinos

d) To study the effect of solar flares on our communication systems

Question : 3

For the myopic eye, the defect is cured by

a) Cylindrical lens

b) Concave lens

c) Convex lens

d) Toric lens

Question : 4

Which of the following statements is/ are false about mode of heat transfer?

1. In radiation, heat is transfered from one medium to another without affecting the intervening medium
2. Radiation and convection are possible in vaccum while conduction requires material medium.
3. Conduction is possible in solids while convection occurs in liquids and gases.

a) II only

b) I only

c) II and III

d) I, II and III

Question : 5

Match List I with List II and select the correct answer using the codes given below the lists:

a) A – 3, B – 1, C – 2, D – 4

b) A – 2, B – 3, C – 4, D – 1

c) A – 2, B – 1, C – 3, D – 4

d) A – 3, B – 4, C – 1, D – 2

Question : 6

The normal temperature of human body is 98.4°F. It’s equivalent temperature (in °C) is

a) 36.89

b) 35.72

c) 40.16

d) 32.36