set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on measurement and SI units topic of general science mcq
(a) N/m2
(b) degree/cm
(c) N/m
(d) N m
The correct answers to the above question in:
Answer: (c)
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Read more measurement and si units Based General Science Questions and Answers
Question : 1
The displacement of a particle at time t is given by $X↖{→}=ai↖{˄}+btj↖{˄}+c/2{t^2}k↖{˄}$ where a, b and c are positive constants. Then the particle is
a) decelerated along $j↖{˄}$ direction
b) accelerated along $18/5$ direction
c) decelerated along $18/5$ direction
d) accelerated along $j↖{˄}$ direction
Answer »Answer: (b)
Question : 2
Match List 'I' (Physical quantity) with list II (Dimension) and select the correct answer by using the codes given below the lists.
List I (Physical quantity) | List II (Dimension) |
A. Density | 1. [MLT–2] |
B. Force | 2. [ML–3] |
C. Energy | 3. [MLT–1] |
D. Momentum | 4. [ML2T–2] |
a) 2 1 4 3
b) 3 2 4 1
c) 1 2 3 4
d) 3 2 1 4
Answer »Answer: (a)
Question : 3
Which one of the following remains constant while throwing a ball upward ?
a) Acceleration
b) Displacement
c) Kinetic energy
d) Velocity
Answer »Answer: (a)
Question : 4
How can the height of a person who is six feet tall, be expressed (approximately) in nanometre?
a) 183 × $10^7$ nm
b) 183 × $10^6$ nm
c) 234 × $10^6$ nm
d) 181 × $10^7$ nm
Answer »Answer: (a)
Question : 5
Match List I (Units) with List II (Physical quantity) and select the correct answer using the codes given below the lists.
List I (Units) | List II (Physical quantity) |
A. Watt | 1. Electric charge |
B. Tesla | 2. Power |
C. Coulomb | 3. Luminous intensity |
D. Candela | 4. Magnetic field |
a) 1 2 4 3
b) 1 4 1 3
c) 1 2 3 4
d) 2 4 3 1
Answer »Answer: (b)
Question : 6
A motor vechicle is moving on a circle with a uniform speed. The net acceleration of the vehicle is
a) away from the centre along the radius of the circle
b) zero
c) towards the centre of circle
d) perpendicular to the radius and along the velocity
Answer »Answer: (c)
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