Options:
- A. Highly precise instrument
- B. Conduct at room temperature
- C. Count number of vibration
- D. Both a and C
View Answer
D. Both a and C
Physics
When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by______________?
Options:
- A. Mass of a body
- B. Velocity of body
- C. The tension in the string
- D. Centripetal acceleration
View Answer
C. The tension in the string
What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ?
Options:
- A. 1N
- B. 10N
- C. 2N
- D. 100N
View Answer
A. 1N
Terminal velocity is given by equation_______________?
Options:
- A. Vt = gr2?
- B. Vt = 2gr2/9?
- C. Vt = gr2/9?
- D. Vt = 9gr2/2?
View Answer
B. Vt = 2gr2/9?
In cricket when a bowler produce reverse swing the ball will move towards______________?
Options:
- A.The shinning side of the ball
- B. Rough side
- C. The seam of the ball
- D. Goes straight
View Answer
A.The shinning side of the ball
The normal blood pressure range for a human body is______________?
Options:
- A. 120 to 80 torr
- B. 100 to 80 torr
- C. 120 to 60 torr
- D. 60 to 140 torr
View Answer
A. 120 to 80 torr
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 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
Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?
Options:
- A. ?-rays
- B. ?-rays
- C. ?-rays
- D. X-rays
View Answer
C. ?-rays
X-rays are electromagnetic waves like________________?
Options:
- A. Light waves
- B. Heat waves
- C. Microwaves
- D. ?-rays
View Answer
D. ?-rays