1
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33

LIGO experiment confirmed one of the predictions of :

A

String theory

B

Special theory of relativity

C

Quantum mechanics

D

General theory of relativity

2
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33

A block of mass 2 kg, moving with the initial speed of 3 m/s comes to rest on a rough horizontal surface after travelling a distance of 3 m. The magnitude of the frictional force is :

A

9 N

B

3 N

C

18 N

D

1 N

3
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33

Which one of the following is primarily responsible for conduction of current in a metal?

A

Bound electrons

B

Free electrons

C

Both bound and free electrons

D

Ions

4
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
The streaming of light beams coming from the Sun through trees is said to have suggested that light travels in straight line. The particles on the path of light beams are visible to us because
A
dust particles in the air reflect light into our eyes
B
dust particles in the air scatter light into our eyes
C
dust particles in the air refract light into our eyes
D
dust particles in the air polarize light into our eyes