Generate Test Make Quiz

mcqs of ,

1 : Which phenomenon shows that light is transverse in nature?

1 : Refraction

2 : Polarization

3 : Interference

4 : Reflection

2 : Optical rotation in optically active substances can determine their:

1 : Density

2 : Viscosity

3 : Concentration in solution

4 : Elasticity

3 : If unpolarized light is incident on a polaroid sheet, the transmitted beam will be:

1 : Non-plane polarized

2 : Plane polarized

3 : Unpolarized

4 : Circularly polarized

4 : Longitudinal waves do NOT exhibit:

1 : Reflection

2 : Refraction

3 : Diffraction

4 : Polarization

5 : Which phenomenon proves light waves are transverse?

1 : Reflection

2 : Diffraction

3 : Polarization

4 : Dispersion

6 : Which wave cannot be polarized?

1 : Radio waves

2 : Light waves

3 : X-rays

4 : Sound waves

7 : Optically active crystals rotate the:

1 : Vibrating plane

2 : Polarization plane

3 : Diffraction plane

4 : Interference plane

8 : Polarization of light is:

1 : Scattering of light

2 : Vibration in a specific plane

3 : Travel in straight lines

4 : Color change

9 : The process of confining the beam of light to vibrate in one plane is called:

1 : Interference

2 : Diffraction

3 : Polarization

4 : Total internal reflection

10 : Malus's law states that light intensity is proportional to:

1 : Square of cosine of angle

2 : Square of sine of angle

3 : Angle itself

4 : Inverse of angle

11 : When light passes through a polarizer, its intensity:

1 : Increases

2 : Decreases

3 : Remains same

4 : Becomes zero

12 : The angle between light wave and analyzer is called:

1 : Polarization angle

2 : Refraction angle

3 : Reflection angle

4 : Azimuth angle

13 : The analyzer's purpose in polarization experiments is to:

1 : Polarize light

2 : Measure light intensity

3 : Change light direction

4 : Filter unwanted light

14 : Malus's law is mathematically represented as:

1 : I ∝ cos²θ

2 : I ∝ sin²θ

3 : I ∝ tanθ

4 : I ∝ cotθ

15 : Increasing angle between light wave and analyzer:

1 : Increases intensity

2 : Decreases intensity

3 : Unchanged intensity

4 : Zero intensity

16 : Maximum light intensity occurs when light wave and analyzer are:

1 : Perpendicular

2 : Parallel

3 : At 45°

4 : At 60°

17 : Unwanted light interfering with vision is called:

1 : Haze

2 : Glare

3 : Contrast

4 : Flare

18 : Who predicted gravitational waves?

1 : Galileo Galilei

2 : Albert Einstein

3 : Isaac Newton

4 : Leonardo da Vinci

19 : Gravitational waves are:

1 : Electromagnetic waves

2 : Mechanical waves

3 : Ocean waves

4 : Spacetime ripples

20 : Which is NOT optically active?

1 : Sugar

2 : Tartaric acid

3 : Water

4 : Sodium chlorate

21 : Primary method to detect gravitational waves is:

1 : Optical telescopes

2 : Radio telescopes

3 : Laser interferometry

4 : Gravitational lensing

22 : A primary source of gravitational waves is:

1 : Binary black hole merger

2 : Solar flares

3 : Earthquakes

4 : Supernovae

23 : Sodium chloride in a flame emits:

1 : Blue light

2 : Red light

3 : Yellow light

4 : White light

24 : Polarization demonstrates light is:

1 : Longitudinal waves

2 : Compressional waves

3 : Transverse waves

4 : Electromagnetic waves

25 : Bending of light around obstacles is called:

1 : Diffraction

2 : Polarization

3 : Quantization

4 : Interference

26 : Wavelength order of X-rays is:

1 : 100 m

2 : 10⁻¹⁰ m

3 : 10⁻³ m

4 : 10⁻⁶ m

27 : For atomic distance 0.30 nm at 30° (1st order), X-ray wavelength is:

1 : 0.60 nm

2 : 0.30 nm

3 : 0.20 nm

4 : 0.90 nm

28 : The property used to find substance concentration in solutions is:

1 : Optical rotation

2 : Interference

3 : Diffraction

4 : Reflection

29 : Which waves cannot be polarized?

1 : X-rays

2 : Light waves

3 : Sound waves

4 : Infrared rays

Physics 11th MCQs || Ilam Ghar