# General Science/General Science - Physics MCQs Part2 Sample Test,Sample questions

## Question: `As per Ohm’s law, if the resistance of a conductor is doubled, what will be the effect on the current flowing through it?`

1. it gets doubled

2. it gets halved

3.it increases 4 times

4.No change

1. 1/8 seconds

2.1/16 seconds

3.1/32 seconds

4.1 second

## Question: `How can a moving coil galvanometer be converted into a ammeter?`

1.by introducing shunt resistance in parallel

2.by introducing shunt resistance in series

3.by introducing large resistance in series

4.None of the above

## Question: `﻿Which of the following represents ideal gas law?`

1.PVT = constant

2.PT/V = constant

3.PV/T = constant

4.VT/P = constant

1. Isobars

2. Isotopes

3.Isotones

4.Isomers

## Question: `What do we call the phenomenon of spontaneous disintegration of the nucleus of an atom?`

1. Nuclear Fusion

2.Ionisation

4.Covalent Bonding

2.Isothermal

3.Isochoric

4.Isobaric

## Question: `What do we call the temperature and pressure at which solid, liquid, and vapor phases of a particular substance coexist in equilibrium?`

1.Equilibrium point

2.Triple point

3. Normal point

4.None of the above

## Question: `What happens to the resistance of a p-n junction diode when forward biased?`

1.it becomes high

2.No effect

3.it becomes low

4.it becomes zero

## Question: `What is the branch of physics that deals with the concepts of heat and temperature and the inter-conversion of heat and other forms of energy is known as?`

1.Calorimetry

2.Thermodynamics

3.Thermostatics

4. Electrostatics

## Question: `What is the ratio of the change in collector current to the change in base current at a constant collector-emitter voltage, when the common emitter transistor is in active state, known as?`

1. Input resistance

2.Output resistance

3.Current amplification factor

4.None of the above

## Question: `What is the size of the image formed by a concave mirror when the object is at focus?`

1.Enlarged

2.Point sized

3.Same size

4.Highly enlarged

## Question: `What is the work done to move a unit charge from point to another called as?`

1.Current

2.Resistance

3. Conductance

4.Potential Difference

1. Helium

2.Carbon

3.Titanium

4.Hydrogen

## Question: `Which of the following exchanges with the surrounding take place in a closed system?`

1.Both matter and energy

2.Only energy

3.Only matter

4.No exchange

1.Myopia

2.Hyper-metropia

3.Cataract

4.None

## Question: `Which of the following is correct about conductors?`

1.The conduction band and the valence band partly overlap each other

2.There is no forbidden energy band gap between conduction band and the valence band

3.Both a and b

4.None of the above

## Question: `Which of the following is correct as per the second law of thermodynamics?`

1.Efficiency of a heat engine can never be zero

2.Efficiency of a heat engine can never be unity

3. Efficiency of a heat engine is always unity

4.None of the above

## Question: `Which of the following is correct?`

1.Freely suspended magnet always align in north-south direction

2.Magnetic poles of a magnet are of equal strength

3.Both a and b

4.None of the above

## Question: `Which of the following is NOT correct about the force of interaction between two poles of a magnet, as per coulomb’s law?`

1.directly proportional to the product of the pole strength

2.directly proportional to the square of the distance r between the poles

3.Both a and b

4.None of the above

## Question: `Which of the following is the phenomenon responsible for the trade winds?`

1.Convection

2.Conduction

4.None of the above

## Question: `Which of the following is true about a concave lens?`

1.power of a concave lens is positive

2.power of a concave lens is negative

3. power of a concave lens is zero

4.None of the above

## Question: `Which of the following is true about a cyclic process?`

1.the total heat absorbed equals the work done by the system.

2.the system returns to its initial state

3.Both a and b

4.None

## Question: `Which of the following is true about metals?`

1.They are good conductors of electricity

2.They have low resistivity

3.Both a and b

4.None of the above

## Question: `Which of the following mirrors is commonly used as rear-view mirror in a vehicle?`

1.Concave mirror

2. Convex mirror

3.Plain mirror

4.None of the above

## Question: `Which of these phenomenon is due to the scattering of light?`

1.blue colour of sky

2. reddening of the Sun at sunrise

3.reddening of the Sun at sunset

4.All of the above

## Question: `Which of these rays have the highest penetrating power?`

1.Alpha

2.Beta

3.Gamma

4. All have the same

## More MCQS

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