Everyday Science · Physics in Everyday Life · page 1 of 5

Everyday Science misc (127) MCQs with Answers

Includes 3 past paper MCQs (marked).

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Miscellaneous MCQs (1–10)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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1.
Past Paper MCQ
A matter can exist in which of the following forms?
Correct Answer: D. All of these
One-liner
Matter can exist in all of these forms — solid, liquid, and gas (and also plasma as a fourth state).
2.
What causes the oil in the wick of an oil lamp to rise up?
Correct Answer: D. Capillary action
One-liner
The oil rises in the wick of an oil lamp due to capillary action, which is the ability of a liquid to flow in narrow spaces against gravity.
3.
What are the three types of nuclear radiation?
Correct Answer: A. Alpha, beta, and gamma
One-liner
The three types of nuclear radiation are alpha, beta, and gamma radiation.
4.
Which radiation is least penetrating?
Correct Answer: C. Alpha rays
One-liner
Alpha rays are the least penetrating form of radiation, as they can be stopped by a sheet of paper or a few centimeters of air.
5.
A powder contains 100mg of a radioactive material that emits α-particles. After how much time will 25mg of the material remain if its half-life is 10 days?
Correct Answer: B. 20 days
One-liner
After 20 days, 25mg of the radioactive material will remain, as two half-lives (2 × 10 days) reduce 100mg to 25mg.
6.
When a drop of ink is added in water, it gets evenly distributed due to ?
Correct Answer: A. Diffusion
One-liner
When a drop of ink is added to water, it gets evenly distributed due to diffusion.
7.
λ is a constant:
Correct Answer: B. Decay
One-liner
λ (lambda) is a decay constant, representing the probability of decay per unit time in radioactive processes.
8.
By which process does the smell of cooking spread to all the rooms in a house?
Correct Answer: B. Diffusion
One-liner
The smell of cooking spreads to all rooms through diffusion, the movement of particles from an area of higher concentration to an area of lower concentration.
9.
The radioactivity due to C-14 isotope (half-life 6000 years) in a sample of wood from an ancient tomb was found to be nearly half of that of fresh wood. The tomb is therefore about _?
Correct Answer: C. 6000 years old
One-liner
Since the C-14 radioactivity has reduced to half, one half-life has elapsed, making the tomb approximately 6000 years old.
10.
The pressure 14.7 psi is equal to _?
Correct Answer: A. 1 atm
One-liner
The pressure 14.7 psi is equal to 1 atm (standard atmospheric pressure at sea level).

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Everyday Science misc (127) MCQs with Answers

Miscellaneous MCQs (1–10)

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