The time of flight of a projectile is maximum when angle of projection is MCQ with Answer and Explanation

The time of flight of a projectile is maximum when angle of projection is
A. 90°
B. 60°
C. 30°
D. 45°
Answer: Option A
Solution (By JKSSB Mock Tests)
T = 2u sinθ/g, max when sinθ=1 => θ=90° (vertical).

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Physics Questions

Question #1
According to Wien's Displacement Law, if the absolute temperature of a radiating black body is doubled, the wavelength corresponding to maximum spectral emissive power will:
A. Halve
B. Double
C. Increase four times
D. Remain unchanged

Correct Answer: Option A


Explanation:
Wien's Displacement Law states that the wavelength at which a black body emits maximum radiation (lambda_m) is inversely proportional to its absolute temperature (T). lambda_m * T = b (Wien's constant). If the temperature T is doubled (2T), the peak wavelength lambda_m must strictly halve to maintain the constant product.

This question belongs to: Science Physics
Question #2
A pulley system has 4 pulleys. Its velocity ratio (number of supporting ropes) is
A. 4
B. 2
C. 8
D. 1

Correct Answer: Option A


Explanation:
For ideal block and tackle with n movable pulleys, VR = n = 4.

This question belongs to: Science Physics
Question #3
In an electric circuit, ammeter is connected in
A. Either
B. Series
C. Parallel
D. Across load

Correct Answer: Option B


Explanation:
Ammeter must be in series to measure full current. Very low internal resistance.

This question belongs to: Science Physics