Options:
- A. constructive interference
- B. destructive interference
- C. beats
- D. resonance
View Answer
B. destructive interference
Physics
Beats are the results of____________________?
Options:
- A. diffraction of sound waves
- B. constructive and destructive interference
- C. polarization
- D. destructive interference
View Answer
B. constructive and destructive interference
Reciprocal of resistivity is called__________________?
Options:
- A. resistance
- B. inductance
- C. conductivity
- D. flexibility
View Answer
C. conductivity
Internal resistance is the resistance offered by________________?
Options:
- A. source of EMF
- B. conductor
- C. resistor
- D. capacitor
View Answer
A. source of EMF
A point source of light placed in a homogeneous medium gives rise to ___________________?
Options:
- A. a cylindrical wave front
- B. an elliptical wave front
- C. a spherical wave front
- D. a plane wave front
View Answer
C. a spherical wave front
Light reaches the earth form sun in nearly____________________?
Options:
- A. 15 minutes
- B. 10 minutes
- C. 8 minutes
- D. 8 minutes 30 seconds
View Answer
D. 8 minutes 30 seconds
If a body a mass of 2 kg is raised vertically through 2m, then the work done will be _________________?
Options:
- A. 38.2 J
- B. 392.1 J
- C. 39.2 J
- D. 3.92 J
View Answer
C. 39.2 J
Physics is one of the branches of___________?
Options:
- A. Physical sciences
- B. Biological sciences
- C. Social science
- D. Life sciences branch
View Answer
A. Physical sciences
A man is in a car is moving with velocity of 36km/hr. His speed with repect to the car is ____________________?
Options:
- A. 10m/s
- B. 36m/s
- C. zero
- D. infinite
View Answer
C. zero
At which angle the range of the projectile is maximum____________________?
Options:
- A. 45
- B. 60
- C. 30
- D. none
View Answer
A. 45