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Practice MCQ Questions and answers on Physics-GK

Learn and practice General Knowledge questions and answers on Physics with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-5 section-11

Each section contains 100 MCQs on Physics .
41
What factors contribute to global winds?
Discuss
Answer & Solution
Answer: Option D
Solution:
Global winds are affected by convection current, pressure gradients, the Coriolis effect, and friction.
42
Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?
Discuss
Answer & Solution
Answer: Option B
Solution:
Equivalent K will be 2k1k2/k1+k2.
43
A spring is an example of which of these
Discuss
Answer & Solution
Answer: Option B
Solution:
A spring is an example of Hooke's law.
44
A copper disc has a hole. If the disc is heated, the size of the hole
Discuss
Answer & Solution
Answer: Option A
Solution:
When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter (sum of two radii) of the circular hole also increases.
45
Which measurement describes the pressure of a gas?
Discuss
Answer & Solution
Answer: Option A
Solution:
450 mm Hg denotes the air pressure.
46
Tensional forces normally cause which one of the following?
Discuss
Answer & Solution
Answer: Option A
Solution:
Tensional forces normally cause normal faults.
47
Amount of water vapour in the atmosphere is measured in terms of
Discuss
Answer & Solution
Answer: Option A
Solution:
Humidity is the amount of water vapour in the air. The vapour content of air is measured with devices known as hygrometers. The measurements are usually expressed as specific humidity or percent relative humidity.
48
For an ideal gas, which one of the following statements does not hold true?
Discuss
Answer & Solution
Answer: Option A
Solution:
"The speed of all gas molecules is same" is not a true statement.
49
Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as
Discuss
Answer & Solution
Answer: Option A
Solution:
Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as Thomson effect.
50
The transport phenomenon occurs only in ________ state of a gas and is ________
Discuss
Answer & Solution
Answer: Option C
Solution:
The transport phenomenon occurs only in equilibrium state of a gas and is irreversible.