Options:
- A. force
- B. impulse
- C. velocity
- D. both A and C
View Answer
A. force
Physics
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?
Options:
- A. 5m/s, 1m/s
- B. 3m/s, 3m/s
- C. 6m/s, 1m/s
- D. 4m/s, 2m/s
View Answer
A. 5m/s, 1m/s
Which one is the correct relation for fundamental frequency of open and closed pipe ?
Options:
- A. fopen = 2 fclosed
- B. fclosed = 2fopen
- C. fopen = fclosed
- D. fopen = 1 / f closed
View Answer
A. fopen = 2 fclosed
A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?
Options:
- A. 1/4f
- B. 1/2f
- C. frequency lower than 20 Hz
- D. 2f
View Answer
C. frequency lower than 20 Hz
There are three bulbs of 60W 100W and 200W which bulb has thickest filament ?
Options:
- A. 100W
- B. 200W
- C. 60W
- D. all
View Answer
B. 200W
Resistance of a wire on increasing its temperature will_________________?
Options:
- A. increase with rise in temperature
- B. decrease with rise in temperature
- C. will remain same
- D. depends upon altitude of experimentation
View Answer
A. increase with rise in temperature
When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?
Options:
- A. polarization
- B. constructive interference
- C. destructive interference
- D. diffraction
View Answer
C. destructive interference
Central spot of Newtons rings __________________?
Options:
- A. bright
- B. dark for large wavelength
- C. dark
- D. bright for large wavelength
View Answer
A. bright
Proton electron neutron and a particles have same momentum. Which of them have highest K.E ?
Options:
- A. Proton
- B. electron
- C. neutron
- D. a-particle
View Answer
B. electron
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?
Options:
- A. biology
- B. physics
- C. information technology
- D. chemistry
View Answer
B. physics