Physics - Study Mode
[#776] Which of the following has the shortest wavelength?
Correct Answer
(A) Gamma rays
Explanation
Solution: Gamma rays has the shortest wavelength.
[#777] Why is it difficult to breathe at higher altitudes?
Correct Answer
(A) Due to low air pressure
Explanation
Solution: At high altitudes, oxygen molecules are further apart because there is less pressure to "push" them together. This effectively means there are fewer oxygen molecules in the same volume of air as we inhale.
[#778] The Hydraulic Break works on the principle of ________ .
Correct Answer
(A) Pascal's Law
Explanation
Solution: Hydraulic brakes work on the principle of Pascal's law.
[#779] Hydraulic brakes work on the principle of
Correct Answer
(D) Pascal's law
Explanation
Solution: Hydraulic brakes work on the principle of Pascal's law.
[#780] What principle/law explains the working of the hydraulic brakes in automobiles ?
Correct Answer
(C) Pascal's law
Explanation
Solution: The hydraulic brakes in automobiles works on the principle of Pascal's law.