Physics Trivia: MCQ Exam! Quiz

20 Questions | By Engr_miraj84 | Updated: Mar 20, 2022 | Attempts: 142

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Questions and Answers

1.

Which of the following is more accurate?
- A.
  
  30.0
- B.
  
  40.0
- C.
  
  33.0
- D.
  
  10.0
2.

The number of significant figures in 333 is?
- A.
  
  Infinite
- B.
  
  3
- C.
  
  2
- D.
  
  0
3.

The result of an instrument is 466, what is its least count?
- A.
  
  100
- B.
  
  1
- C.
  
  10
- D.
  
  0
4.

Which one is the right formula?
- A.
  
  V=sqrrt(gs)
- B.
  
  V=g/s
- C.
  
  S=v/g
- D.
  
  Option 4
5.

If s=6.666cm and r=6.6 then the angle will be:
- A.
  
  1 rad
- B.
  
  1.0 rad
- C.
  
  1.00 rad
- D.
  
  1.000 rad
6.

The angle made by the minute hand of a watch in 30 minutes is?
- A.
  
  Pi radian
- B.
  
  60
- C.
  
  45
- D.
  
  90
7.

A sphere has a radius of 10 cm, the angle subtended by 300 sq-cm of its area at the center is:
- A.
  
  3 steradians
- B.
  
  3 radians
- C.
  
  3pi steradians
- D.
  
  3pi radians
8.

100 Amstrong in microns is equal to:
- A.
  
  10
- B.
  
  0.1
- C.
  
  0.01
- D.
  
  0.01
9.

A body cover distance equal to three times radius of the earth along a circular track, the angle subtended at the center of the circle is
- A.
  
  104
- B.
  
  156
- C.
  
  172
- D.
  
  244
10.

Circumference of a circle is 50m. the angle subtended by an arc of 2m will be:
- A.
  
  Pi/2 radian
- B.
  
  Pi/25 rad
- C.
  
  2pi/25 radian
- D.
  
  Pi/50 rad
11.

The surface area of 16 sq.meter of sphere portion make one ste radian, the diameter of the sphere will be?
- A.
  
  4 sq cm
- B.
  
  8 sq cm
- C.
  
  2 sq cm
- D.
  
  64 sq cm
12.

The surface area of 10 sq cm of closed surface area 100 sq cm will subtend an angle at the center?
- A.
  
  2pi/5 steradian
- B.
  
  4pi/5 steradian
- C.
  
  Pi/5 steradian
- D.
  
  4pi steradian
13.

A single surface of regular cube make an angle iwth center.
- A.
  
  2pi/3 steradian
- B.
  
  Pi/3 steradian
- C.
  
  4pi/3 steradian
- D.
  
  None of these
14.

What is the dimension of P in equation y=X sin(PQ) if the dimension of q is L/T?
- A.
  
  Dimensionless
- B.
  
  T/L
- C.
  
  LT
- D.
  
  L/T
15.

The percentage uncertainty in the volume of a sphere is 30%, then uncertainty in its area will be?
- A.
  
  10%
- B.
  
  20%
- C.
  
  30%
- D.
  
  60%
16.

If R=2+2% then absolute uncertainty will be:
- A.
  
  0.02
- B.
  
  0.01
- C.
  
  0.04
- D.
  
  1
17.

The radius of a sphere is 5.0 cm the relative uncertainty in its volume is?
- A.
  
  2%
- B.
  
  3%
- C.
  
  6%
- D.
  
  8%
18.

The result of 3.12 x 56.14 x 3.001
- A.
  
  Infinite
- B.
  
  2
- C.
  
  3
- D.
  
  0
19.

The number of a significant figure in 444 are?
- A.
  
  3
- B.
  
  1
- C.
  
  0
- D.
  
  Infinite
20.

1.2 g/cm³= ___________________ kg/m³
- A.
  
  1200
- B.
  
  12000
- C.
  
  120
- D.
  
  12