A tuning fork of frequency 256 Hz is sounded. In 1 second, number of compressions produced is MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Physics Questions
Question #1
Report Error
Raindrops fall to the ground with a uniform, constant velocity. This constant velocity is achieved when the gravitational pull is perfectly balanced by:
Correct Answer: Option C
Explanation:
As a raindrop falls, it accelerates due to gravity. The upward viscous drag force of the air increases with the drop's velocity (Stokes' Law). Eventually, the downward weight of the drop is exactly balanced by the upward buoyant force of the air plus the upward viscous drag force. The net force becomes zero, and it falls with a constant 'terminal velocity'.
As a raindrop falls, it accelerates due to gravity. The upward viscous drag force of the air increases with the drop's velocity (Stokes' Law). Eventually, the downward weight of the drop is exactly balanced by the upward buoyant force of the air plus the upward viscous drag force. The net force becomes zero, and it falls with a constant 'terminal velocity'.
Question #2
Report Error
When a body falls freely under gravity, its
Question #3
Report Error
Binding energy per nucleon peaks at:
Correct Answer: Option B
Explanation:
Maximum binding energy/nucleon ≈ 8.8 MeV at iron-56, making it most stable. Lighter nuclei release energy via fusion; heavier via fission. Memory tip: 'Iron peak: most stable nucleus; fusion before, fission after'. Nuclear physics concept frequently tested in competitive exams.
Maximum binding energy/nucleon ≈ 8.8 MeV at iron-56, making it most stable. Lighter nuclei release energy via fusion; heavier via fission. Memory tip: 'Iron peak: most stable nucleus; fusion before, fission after'. Nuclear physics concept frequently tested in competitive exams.
No comments yet. Be the first to start the discussion!