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Complete Physics Quiz

The Science and Technology Physics Questions and answers, Physics Quiz 2 is based on objective question, which we covered measurement, dimension and different type of physics question answer.

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Question 1 : Which pair given below having different dimension?

(A) Torque and Work

(B) Angular momentum, Plank.s constant

(C) Impulse of force & linear momentum

(D) Tension, Surface tension

View Answer
(D) Tension, Surface tension


Question 2 : Force acting on a body is 10N. If the unit of mass and distance become double and unit of time becomes half then magnitude of force in new unit system will be  ____ N.

(A) 1.6

(B) 16 

(C) 160 

(D) 1600

View Answer
(C) 160 


Question 3 : Unit of power 100erg min.1, unit of time is 1 h, unit of force is 60 dyne then unit of lenght is _____ cm.

(A) 1

(B) 10

(C) 100

(D) 1000

View Answer
(C) 100


Question 4 :  When 10 N force is act on a particle momentum obtained is 1 SI, frequency of oscillation for a particle is ____ .

(A) 1 Hz

(B) 10 Hz 

(C) 100 Hz

(D) 1 KHz

View Answer
(B) 10 Hz 


Question 5 : 100 g mass, 10 cm distance, 0.1s time are taken as units in new system. Unit of work = ______ in new system.

(A) 0.01 J 

(B) 0.1 J

(C) 1 J

(D) 10 J

View Answer
(B) 0.1 J


Question 6 : Micrometer screw with pitch 0.5 mm and 50 divisions on circular scale is used to measure diameter of a sphere. Then least count of micrometer screw is ______ .

(A) 0.1 cm

(B) 0.01 cm

(C) 0.001 cm

(D) 0.05 cm

View Answer
(C) 0.001 cm


Question 7 : Diameter of a wire is measured with micrometer of least count 0.01 mm. Reading of main scale is 0 mm and reading of circular scale are 48 divisions then diameter of a wire is ________ .

(A) 0.48 cm

(B) 0.048 cm

(C) 0.24 cm

(D) 0.0048 cm

View Answer
(B) 0.048 cm


Question 8 : Match the physical quantity in column – 1 with SI unit in Column – 2.

(A). 1 (c), 2 (d), 3 (b), 4 (a)

(B). 1 (b), 2 (c), 3 (a), 4 (d)

(C). 1 (d), 2 (b), 3 (c), 4 (a)

(D). 1 (c), 2 (d), 3 (a), 4 (b)

View Answer
(A). 1 (c), 2 (d), 3 (b), 4 (a)


Question 9 : Match the measurement in column – 1  with significant digits in column – 2.

(A). 1 (b), 2 (a), 3 (d), 4 (c)

(B). 1 (d), 2 (c), 3 (b), 4 (a)

(C). 1 (d), 2 (a), 3 (c), 4 (a)

(D). 1 (b), 2 (c), 3 (d), 4 (a)

View Answer
(B) 1 (d), 2 (c), 3 (b), 4 (a)


Assertion – Reason type Question:

Instruction: Read assertion and reason carefully, select proper option from given below

  1. Both assertion and reason are true and reason explains the assertion
  2. Both assertion and reason are true but reason does not explain the assertion
  3. Assertion is true but reason is false
  4. Assertion is false and reason is true

Question 11 :

Assertion: Light year and wavelength both represent distance.
Reason: Both having dimension of time.

(A) a

(B) b

(C) c

(D) d

View Answer
(B) b 

Question 12 : 

Assertion: The distance of stars, which are farthar away than 100 light year cannot measured with the method of parallex removal.
Reason: Angle of parallex removal cannot be measured accurately.

(A) a

(B) b

(C) c

(D) q

View Answer
(A) a

Question 13 : 

Assertion: Dimension of Surface tension and Surface energy are equal.
Reason: Their SI units are equal.

(A) a

(B) b

(C) c

(D) d

View Answer
(C) c

Question 14 : 

Assertion: y = A sin (wt . kx) and (wt . kx) is dimensionless.
Reason: Dimension of k is M°L1T°

(A) a

(B) b

(C) c

(D) d

View Answer
(C) c

Question 15 :

Assertion : In all measurement, last significant digit is more in accurate.
Reason : d = 0.9 m, d = 0.90 m and d = 0.900 m the d = 0.900 m is more accurate.

(A) a

(B) b

(C) c

(D) d

View Answer
(B) b