NTPC CBT-2 Physics Quiz - 72

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Question 1:

if the earth stops rotating, the apparent value of g on the earth surface will

Question 2:

Which one of the following is used to measure pressure inside eyes ?

Question 3:

A choke coil is an inductance coil of very small resistance used for controlling current in an AC circuit. Choke coil works on the principle of-

Question 4:

Find the power of a lens whose focal length is 2 m?

Question 5:

Electric current does not flow between two charged objects connected together, if they are-

Question 6:

The base of an electric iron is brightly polished mainly -

Question 7:

Astronauts cannot stand upright in a vacuum because-

Question 8:

In which type of error occurs in only one direction, either positive or negative?

Question 9:

A car of mass 600 kg is moving with a velocity of 15 m/s. A force is applied to it so that in 20 seconds, it attains a velocity of 35 m/s. Calculate the value of the force applied. 

Question 10:

The Earth behaves like a huge bar magnet with two poles that are located along the ends of Earth's diameter, which of the following is responsible for Earth's magnetic field?