# ACT: Learn the basics of the Physics Quiz

This is an MCQ-based quiz on the topic of ACT: Learn the basics of Physics.

This set of MCQs helps you brush up on the important mathematics topic and prepare you to dive into skill practice and expand your knowledge to tackle the question and answer it carefully.

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What is the gravitational force experienced by an object of 10kg 200m away from an object weighing 1 ton?

1.6675 N 2.6675 N 3.6675 N 4.6675 N

A force F is applied in a cross-sectional area as shown. The value of F is 20 N and the value of A is 2 m2. Find the pressure on the surface.

20 Pa 40 Pa 5 Pa 10 Pa

A capillary tube when immersed vertically in a liquid records a rise of 3 cm. if the tube is immersed in the liquid at an angle of 60° with the vertical, then length of the liquid column along the tube will be

2 cm 3 cm 6 cm 9 cm

Two stars A and B radiate maximum energy at 3600°A and 3600°A respectively. Then the ratio of absolute temperatures of A and B is

256 : 81 81 : 256 3 : 4 4 : 3

The coefficient performance of a refrigerator is 5. If the temperature inside the freezer is -20℃, calculate the heat rejected to the surrounding

11℃ 41℃ 21℃ 31℃

A particle is initially at the centre and going towards the left. Let T be the time period of the SHM it is undergoing. What will be its position and velocity at time 3T/4, if it starts from the centre at t=0?

At right extreme, zero velocity at centre, maximum speed towards left at centre, maximum speed towards right Mid-way between centre and -A

Time period of simple pendulum of length l and a place where acceleration due to gravity is g is T. what is the period of a simple pendulum of the same length at a place where the acceleration due to gravity is 1.029 is,

T 1.02 T 0.99 T 1.01 T

Masses of three wires are in the ratio 1 : 3 : 5 and their lengths are in the ratio 5 : 3 : 1. The ratio of their electrical resistance is

1 : 3 : 5 5 : 3 : 1 1 : 15 : 125 125 : 15 : 1

The potential differences across the resistor, capacitor and inductor are 80 V, 40 V and 100 V, respectively in an LCR circuit. The power factor of this circuit is:

0.8 1.0 0.4 0.5

In an ac circuit, V and i are given by V = 100 sin (100 t) volt and i = 100 sin (100 + π /3) mA. The power dissipated in circuit is

104 W 10 W 2.5 W 5 W
Quiz/Test Summary
Title: ACT: Learn the basics of the Physics Quiz
Questions: 10
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