Free Physics04 Practice Test - IAS 

Question 1

Match List I with List II and choose the correct answer from the codes given below the lists. 

A. A -3 B -2 C -4 D -1
B. A -1 B -2 C -3 D -4
C. A -4 B -1 C -3 D -2
D. A -2 B -3 C -4 D -1

SOLUTION

Solution : A

Option: (a)

Question 2

Rainbow is produced when sunlight falls on drops of rain.
Which of the following physical phenomena are responsible for this?
1.Diffusion
2.Total Refraction
3.Internal reflection

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

SOLUTION

Solution : D

Option:(d)

Question 3

The clouds float in the atmosphere because of the low

A. Temperature
B. velocity
C. pressure
D. density

SOLUTION

Solution : A

Option:(a)

Question 4

Which of the following are true regarding image formation with the help of mirrors?
1.A concave mirror can give a diminished virtual image.
2.A concave mirror can give a real image.
3.A convex mirror can give a virtual image.
4.A convex mirror cannot give a real image,

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

SOLUTION

Solution : D

Option:(d)

Question 5

rocket and a jet engine differ because
A.their working principles are entirely different.
B.a rocket uses only liquid fuels whereas a jet can use solid fuels as well.
C.while a rocket carries its own oxygen supply a jet draws its air out of the atmosphere.
D.a rocket can propel vehicles into outer space whereas a jet cannot.

A. B, C and D are correct
B. C and D are correct
C. A and B are correct
D. A, C and D are correct

SOLUTION

Solution : B

Option:(b)

Question 6

Domestic electrical wiring is basically a

A. series connection
B. parallel connection
C. combination of series and parallel connections
D. series connection within each room and parallel connection elsewhere

SOLUTION

Solution : B

Option:(b)

Question 7

Optical fibre works on the principle of

A. total internal reflection
B. refraction
C. scattering
D. interference

SOLUTION

Solution : A

Option: (a)

Question 8

Assertion (A) : The boiling point of water decreases as the altitude increases,
Reason (R) : The atmospheric pressure increases with altitude.

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but 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 9

Consider the following natural phenomena
1.Terrestrial heating
2.Reflection of light
3.Refraction of light
4.Diffraction of light
Due to which of these phenomena is mirage formed?

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

SOLUTION

Solution : C

Option: (c)

Question 10

Assertion (A): An iron ball floats on mercury but gets immersed in water.
Reason (R): The specific gravity of iron is more than that of mercury. 

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but 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)

Related Exams