Free Physics06 Practice Test - IAS 

Question 1

Consider the following statements A person in a spaceship located half way between the earth and the sun will notice that the
1.Sky is jet black.
2.Stars do not twinkle.
3.Temperature outside the spaceship is much higher than that on the surface of the earth.

A. 3 alone is correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 1, 2 and 3 are correct

SOLUTION

Solution : D

Option: (d)

Question 2

A simple machine helps a person in doing

A. less work
B. the same amount of work with lesser force
C. the same amount of work slowly
D. the same amount of work much faster

SOLUTION

Solution : B

Option:(b)

Question 3

Consider the following statements At the present level of technology available in India, solar energy can be conveniently used to
1.Supply hot water to residential buildings.
2.Supply water for minor irrigation projects.
3.Provide street lighting.
4.Electrify a cluster of villages and small towns.

A. 1, 2, 3 and 4 are correct
B. 2 and 4 are correct
C. 1 and 3 are correct
D. 1, 2 and 3 are correct

SOLUTION

Solution : D

Option:(d)

Question 4

Assertion (A): Transformer is useful stepping up or stepping down voltages.
Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

SOLUTION

Solution : C

Option:(c)

Question 5

Total internal reflection can take place when light travels from

A. diamond to glass
B. water to glass
C. air to water
D. air to glass

SOLUTION

Solution : A

Option: (a)

Question 6

The variation of displacement d with time t in the case of a particle falling freely under gravity from rest is correctly shown in graph

A.
B.
C.
D.

SOLUTION

Solution : B

Option: (b)

Question 7

To which one of the following process is the term CMYK [Cyan, Magenta, Yellow and Key (black)] related?

A. Railway signals
B. Navigation
C. Offset printing
D. Electronic voting machine

SOLUTION

Solution : C

Option:(c)

Question 8

In which one among the following is the speed of sound maximum?

A. Air at 0°C 
B.  Air at 100°C
C. Water 
D. Wood 

SOLUTION

Solution : D

Option: (d)

Question 9

What does the term Dolby B or Dolby C printed on tape recorders and other sound systems refer to

A. Frequency Modulated System
B. Amplitude Modulated System
C. Noise Reduction Circuit
D. Both DC and AC power can be used

SOLUTION

Solution : C

Option: (c)

Question 10

Which of the following quantum numbers is/are required to describe the state of an electron?
1.Principal
2.Azimuthal
3.Magnetic
4.Spin

A. 1 only
B. 1 and 2
C. 1, 2 and 3
D. 1, 2, 3 and 4

SOLUTION

Solution : D

Option: (d)