# [Set-2] Physics MCQ for Competitive Exams

`MCQ-1>` Which one of the following is not produced by the burning of fossil fuels?

A) NO2
B) Na2O
C) SO2
D) CO2

Answer – B) Na2O

`MCQ-2>` The fraction 1/273 in Charles’s law is known as

A) Volume coefficient
B) Pressure coefficient
C) Both volume and pressure coefficient
D:) None of these

Answer – A) Volume coefficient

`MCQ-3>` The value of thermal conductivity of an ideal insulator is

A) 0
B) 1
C) 100
D) Infinity

Answer – D) infinity

`MCQ-4>`. The portion where image is formed in human eye is

A) eye lens
B) eyeball
C) blind spot
D) Retina

`MCQ-5>` Which color of the light deviated least through a prism?

A) Red
B) Yellow
C) Violet
D) Green

`MCQ-6>` Flow of charge per second is known as –

A) electric potential
B) electric current
C) resistance
D) capacitance

Answer – electric current

`MCQ-7>` If the equivalent resistance of R1

, R2 and R3 (R1> R2 >R3) is R in a parallel combination, then –

A) R > R2
B) R > R1
C) R > R3
D) R < R3

Answer – D) R < R3

`MCQ-8>` What is the unit of work?

A) Jule
B) N/S
C) Watt
D) Jule/second

Answer – A) Jule

`MCQ-9>` The dimension of linear expansion coefficient is [M0L0T0K-1]. The statement is –

A) True
B) False

`MCQ-10>` Which mirror produces virtual and diminished image?