NTPC CBT-2 Physics Quiz - 42

Attempt now to get your rank among 2 students!

Question 1:

One Nanometer is equal to ?

$10^{-9}$ m

$10^{-6}$ m

$10^{10}$ m

$10^{-3}$ m

When an object is in motion, it's ................... must change.

Shape

Size

Acceleration

Position

You are standing in a lift the force on the floor of the lift due to your weight will-

Become zero when the lift moves up with an acceleration of $9.8 \mathrm{~m} / \mathrm{s}^{2}$

Becomes zero when the lift moves down with the acceleration of $9.8 \mathrm{~m} / \mathrm{s}^{2}$

Becomes zero when the lift moves with an affiliation of $9.8 \mathrm{~m} / \mathrm{s}^{2}$

Remain unchanged whatever the rate of acceleration of the lift

On what effect is the principle of fuse based?

Chemical effect of electricity

Mechanical effect of electricity

Heating effect of electricity

Magnetic effect of electricity

Which of the following causes a soap bubble to become spherical?

Surface tension

Gravity

Pressure

Air temperature