Options:
- A. Proton
- B. Electron
- C. Neutron
- D. Photon
View Answer
D. Photon
Physics
When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?
Options:
- A. Centripetal force
- B. Gravitational force
- C. Their inertia
- D. Centrifugal force
View Answer
D. Centrifugal force
Name the branch of science which deals with the study of sound and sound waves?
Options:
- A. Aeronautics
- B. Acoustics
- C. Aerostatics
- D. Aetiology
View Answer
B. Acoustics
What is the shape of velocity, time graph for constant acceleration ?
Options:
- A. straight inclined line.
- B. parabola
- C. inclined curve
- D. declined curve
View Answer
A. straight inclined line.
The formula of inter-conversion of centigrade and Fahrenheit scale is___________?
Options:
- A. c-32/9
- B. f -32/9 =c/5
- C. f-32/9=c/9
- D. none
View Answer
B. f -32/9 =c/5
Which shows the correct relation between time of flight T and maximum height H ?
Options:
- A. H=gT2/8
- B. H=8T2/g
- C. H=8g/T2
- D. H=gT2
View Answer
A. H=gT2/8
The co efficient of linear expansion is equal to__________?
Options:
- A. ?L = ?L?T
- B. ?L/L?T
- C. L?T/?L
- D. ?L?T-?L
View Answer
A. ?L = ?L?T
The unit of coefficient of linear expansion or volume expansion is__________?
Options:
- A. K
- B. K-1
- C. K -2
- D. none
View Answer
B. K-1
linear expansion occurs in_________?
Options:
- A. solid
- B. liquid
- C. both
- D. none
View Answer
A. solid
When body is in motion, ____________ always changes?
Options:
- A. its velocity
- B. its acceleration
- C. its position vector
- D. its momentum
View Answer
C. its position vector