Science Physics MCQ-162

General Science-Physics MCQ Quiz for RBI, UPPSC, NDA, CivilsPrelims, SSC, DelhiPolice, CDS, UPSC Exams



Which of the following pair is wrong?

 
 
 
 

Which of the following pairs of physical quantities has the same dimensions?

 
 
 
 

Match the columns
Quantity — Unit
A. Luminous intensity 1, Kelvin
B. Amount of substance 2. Candela
C. Time 3. Second
D. Temperature 4. Mole
Codes
ABCD

 
 
 
 

Match the columns
Quantity
A. Velocity
B. Force
C. Work
D. Momentum
Dimension
1. [MLT2]
2. [LT-1)
3. [ML2T2]
4. [MLT1]
Codes
ABCD

 
 
 
 

which one of the following is a vector quantity?

 
 
 
 

One astronomical unit is the average distance between

 
 
 
 

A noise level of 100 decibel would correspond to

 
 
 
 

Persec is the unit of

 
 
 
 

Match List I (Quantity) with List II (Unit) and select the correct answer using the codes given below
List I- List II
A. High speed 1. Mach
B. Wavelength 2. Angstrom
C. Pressure 3. Pascal
D. Energy 4. Joule
Codes
ABCD

 
 
 
 

Match List I with List II and select the correct answer using the codes given below
List I List II
A . Joule 1 . Henry-ampere/sec
B . Watt 2 . Farad-volt
C . Volt 3 . Coulomb-volt
D . Coulomb 4 . Oersted-cm
5 . Amp-gauss
6 . Amp2-ohm
Codes
ABCD

 
 
 
 

Consider the” following statements
1 . The magnitude of vector is always a scalar .
2 . The total path length is always equal to the magnitude of the displacement vector of a particle .
3 . The average speed of a particle is either greater or equal to the magnitude of the average velocity of the particle over the same interval of time .
4 . Three vectors not lying in a plane can never add up to give a null vector .
Which of the statement(s) given above is/are correct?

 
 
 
 

Match List I with List II and select the correct answer using the codes given below
List I List II
A . Acceleration 1 . Joule
B . Force 2 . Newton second
C . Work done 3 . Newton
D . Impulse 4 . Metre per second2
Codes
ABCD

 
 
 
 

In the relation ? = (?f +? ? a and ?, are measured in metre (m) and f is measured in second (s).The SI unit of ? must be

 
 
 
 

Match List I with List II and select the correct answer from the codes given below
List I List II
A . Joule 1 . Current
B . Ampere 2 . Power
C . Watt 3 . Work
D . Volt 4 . Potential difference
E . Calorie 5 . Heat
Codes
ABCDE

 
 
 
 

Which of the following physical quantity is dimensionless?

 
 
 
 

Maxwell is the unit of

 
 
 
 

Which of the following physical quantities have the same dimensions?

 
 
 
 

Which of the following is not matched?

 
 
 
 

if the density of water is 1g cm in CGS system, its value in MKS system is

 
 
 
 

A.tension 1 . Pascal
B . Magnetic flux 2 . kgm2s-1
C . Angular 3 . Weber momentum
D . Pressure 4 . Newton/metre
Codes
A BC D

 
 
 
 

One light year is approximately equal to

 
 
 
 

Potential is measured in

 
 
 
 

The most suitable unit for expressing nuclear radius is

 
 
 
 

Consider the physical quantities
1 . Electric current
2 . Work
3 . Temperature
4 . Density
Which of the above are scalar quantities?

 
 
 
 

Masses of stars and galaxies are usually expressed in terms of