Options:
- A. Drag force of air
- B. Gravity
- C. Tension in the string
- D. None of these
View Answer
A. Drag force of air
Physics
The energy absorbed by a body is __________________ at resonance?
Options:
- A. Maximum as well minimum
- B. Minimum only
- C. Maximum only
- D. 0
View Answer
C. Maximum only
The relativistic energy E is equivalent to relativistic mass given by_______________?
Options:
- A. Ec2
- B. E/c2
- C. E/c
- D. c2/E
View Answer
B. E/c2
Which one of the following radiations has the strongest photon?
Options:
- A. T.V waves
- B. Microwaves
- C. X-rays
- D. ?-rays
View Answer
D. ?-rays
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
Forced vibration is known as_____________________?
Options:
- A. Simple harmonic vibration
- B. Natural vibration
- C. Driven harmonic vibration
- D. Free vibration
View Answer
C. Driven harmonic vibration
The mass attached to a spring executes ?
Options:
- A. Vibratory motion
- B. Rotatory motion
- C. S.H.M
- D. Both A and C
View Answer
D. Both A and C
At Murree Hills (Assume the value of g changes). If we use a simple pendulum as time standard then one-second duration will_____________?
Options:
- A. Increase
- B. Decrease
- C. Remains the same
- D. Is zero
View Answer
A. Increase