Laser Quiz Questions. We covered all the Laser Quiz Questions in this post for free so that you can practice well for the exam.
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MCQ on Laser for School Students
The characteristic lack of which an ordinary light is an optical noise, is
1. Coherence
2. Directionality
3. Monochromecity
4. Intensity
Option 1 – Coherence
The incoherent nature of ordinary light makes it
1. Optical noise
2. Optical music
3. Visible
4. None of these
Option 1 – Optical noise
The property of a laser light which makes it optical music, is
1. Directionality
2. Monochromacity
3. Intensity
4. Coherence
Option 4 – Coherence
Emitting light in all directions is called
1. Directionality
2. Divergence
3. Convergence
4. None of these
Option 2 – Divergence
The source of light from which the light emitted is of single colour or of single wavelength, is
1. Sodium vapour lamp
2. Laser
3. Torch light
4. 1 and 2
Option 4 – 1 and 2
The spread of wavelength (or frequency) about the wavelength of maximum intensity is called….
1. Band width
2. Range
3. Band length
4. 1 and 2
Option 4 – 1 and 2
The sources of light, the light emitted by them has the property ‘divergence’, is
1. Torch light
2. Sodium lamp
3. Incandescent bulb
4. All of these
Option 4 – All of these
Emitting light only in one direction is called
1. Divergence
2. Directionality
3. Convergence
4. Interference
Option 2 – Directionality
The source of light, from which the light emitted has the property of ‘directionality’, is
1. Laser
2. Torch light
3. Incandiscent bulb
4. Lamp
Option 1 – Laser
If the beam from a powerful search light travels a distance of 1 km, it spreads to about in diameter
1. 1 metre
2. 1 kilometre
3. 1 centimetre
4. 10 centimetres
Option 2 – 1 kilometre
If the beam from a laser travels a distance of 1 km, it spreads to a diameter less than
1.1 m
2. 1 mm
3. 1 cm
4.1 km
Option 3 – 1 cm
The property/characteristic of laser light which enables us to focus the light to a point on a target at large distance
1. Directionality
2. Coherence
3. Monochromecity
4. Intensity
Option 1 – Directionality
We covered all the laser quiz questions above in this post for free so that you can practice well for the exam.
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