1
NDA General Ability 21 April 2024
+4
-1.33

A uniform meter scale of mass 0.24 kg is made of steel. It is kept on two wedges, W₁ and W₂, in a horizontal position. W₁ is at a distance of 0.2 m from one of its ends, while W₂ is at a distance of 0.4 m from the other end. If the force on the scale is N₁ due to W₁ and N₂ due to W₂, then : (take g = 10.0 m s⁻²)

A

N₁ = 1.6 N and N₂ = 0.8 N

B

N₁ = 0.8 N and N₂ = 1.6 N

C

N₁ = 0.6 N and N₂ = 1.8 N

D

N₁ = 1.8 N and N₂ = 0.6 N

2
NDA General Ability 21 April 2024
+4
-1.33

Escape speed from the Earth is close to 11.2 km s⁻¹. On another planet whose radius is half of the Earth's radius and whose mass density is four times that of the Earth, the escape speed in km s⁻¹ will be close to :

A

11.2

B

15.8

C

5.6

D

7.9

3
NDA General Ability 21 April 2024
+4
-1.33

Which one of the following does not apply to sound waves in fluids?

A

They transport energy

B

They need a medium to travel

C

They are transverse

D

They travel faster in liquids than in gases

4
NDA General Ability 21 April 2024
+4
-1.33

A ball of 0.1 kg mass is dropped on a hard floor from a height of 0.45 m and rises to a height of 0.2 m. If it was in touch with the floor for 0.1 s, the net force it applied on the floor while bouncing is : (take the gravitational acceleration g = 10 m s⁻²)

A

1.0 N

B

6.0 N

C

3.0 N

D

5.0 N

EXAM MAP
Medical
NEET