Physics Quiz For Class 11
- Question of
What exactly is a conservative force conserving?
- Force
- Energy
- Velocity
- Acceleration
- Question of
The force that is not one of the conservative forces is
- frictional force
- gravitational force
- electric force
- elastic spring force
- Question of
When a force is parallel to the direction of motion of the body, then work done on the body is.
- Zero
- Minimum
- Maximum
- Infinity
- Question of
For equilibrium, the net moment acting on the body by various conservative forces is _____:
- Zero
- One
- Two
- Three
- Question of
What exactly is a conservative force conserving?
- Force
- Energy
- Velocity
- Acceleration
- Question of
The force that is not one of the conservative forces is
- frictional force
- gravitational force
- electric force
- elastic spring force
- Question of
When a force is parallel to the direction of motion of the body, then work done on the body is.
- Zero
- Minimum
- Maximum
- Infinity
- Question of
All visible objects either ______ or reflect light
- emit
- transfer
- absorb
- None
- Question of
According to Einstein’s theory, light consists of particles called _________.
- electrons
- protons
- photons
- None
- Question of
Scientists now agree that ________ has a dual nature, part particle and part wave
- single
- dual
- triple
- None
- Question of
According to ________ speed of light is 300 000 km/s
- Albert Michelson
- Christian Huygens
- Olaus Roemer
- None
- Question of
Michelson’s experimental value for the speed of light was _______________ km/s
- 399,920
- 199,920
- 299,920
- None
- Question of
The energy that travels in a wave that is partly electric and partly magnetic is called _________
- X-rays
- radio waves
- electromagnetic waves
- None
- Question of
The range of electromagnet waves are called _______.
- electromagnet spectrum
- electromagnetic induction
- electromagnetic particles
- None
- Question of
Electromagnetic waves of frequencies lower than the red of visible light are called _________.
- ultraviolet
- infrared
- gamma rays
- None
- Question of
Electromagnetic waves of frequencies higher than those of violet are called __________.
- microwaves
- radio waves
- ultraviolet
- None
- Question of
Materials that transmit light are ________.
- atoms
- opaque
- transparent
- None
- Question of
Examples of opaque materials are_______.
- wood; stone; people
- glass; metals; sink
- none of the above
- None
- Question of
A thin beam of light is often called a ______.
- shadow
- ray
- eclipse
- None
- Question of
When light shines on an object, some of the rays may be stopped while others pass on _____.
- in a straight-line path
- in a curved-line path
- in no path
- None
- Question of
A partial shadow is called a (an) ___________.
- penumbra
- beam
- neutron
- None
- Question of
An eclipse of the sun occurs when the moon’s shadow falls on the ______________.
- planets
- Earth
- sun
- None
- Question of
Light travels in _________.
- particles
- waves
- energy
- None
- Question of
Waves are transversal and not ________.
- longitudinal
- horizontal
- straight
- None
- Question of
Polarization is when waves travel _________.
- vertical
- diagonal
- transversal
- None
- Question of
Waves can be vertically or _______________ polarized
- positively
- horizontally
- diagonally
- None
- Question of
Light that reflects at glancing angles from_________ surfaces, such as glass, water or roads, vibrates mainly in the plane of the reflecting surface
- non-metallic
- metallic
- plastic
- None
- Question of
A pair of photographs or movie frames, taken a short distance apart, can be seen in _________ when the left eye sees only the left view and the right eye sees only the right view
- 2-D
- 4-D
- 3-D
- None
- Question of
To see in 3-D, the viewer wears polarized eyeglasses with the lens axes also at _________ angles
- acute
- right
- obtuse
- None
- Question of
Which of the following can not be the resultant of the vectors of magnitudes 5 and 10?
- 7
- 8
- 5
- 2