Options:
- A. Gravity
- B. Spring
- C. Hand
- D. All of these
View Answer
A. Gravity
Physics
The distance covered by a body in one complete vibration is 20cm. What is the amplitude of body ___________________?
Options:
- A. 10 cm
- B. 5 cm
- C. 15 cm
- D. 7.5 cm
View Answer
B. 5 cm
A cup of milk is placed in a microwave oven. Tell which statements is false. (1) Milk will be heated up only. (2) Cup will remain cool. (3) Both cup and mild will get hot ?
Options:
- A. None
- B. 1
- C. 2
- D. 3
View Answer
D. 3
When K.E energy of SHM is maximum its__________________?
Options:
- A. P.E is zero
- B. Acceleration is zero
- C. Restoring force is zero
- D. All P.E acceleration and restoring force are zero
View Answer
D. All P.E acceleration and restoring force are zero
In damped harmonic oscillation which one decreases ?
Options:
- A. Amplitude of vibration
- B. Energy of vibration
- C. Both amplitude and energy
- D. Neither amplitude nor energy
View Answer
C. Both amplitude and energy
When the amplitude of a wave becomes double its energy become_________________?
Options:
- A. Double
- B. Four times
- C. One half
- D. None time
View Answer
B. Four times
A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________?
Options:
- A. Infinite
- B. T/g
- C. Zero
- D. g/T
View Answer
A. Infinite
The energy of SHM is maximum at_______________?
Options:
- A. Mean position
- B. Extreme position
- C. In between mean and extreme
- D. All positions during SHM
View Answer
D. All positions during SHM
The product of the frequency and time period is equal to_________________?
Options:
- A. 1
- B. 2
- C. 3
- D. 4
View Answer
A. 1
The length of the second pendulum is_________________?
Options:
- A. 100 cm
- B. 99 cm
- C. 99.2 cm
- D. 98 cm
View Answer
C. 99.2 cm