Laser Quiz Questions

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Laser Quiz Questions. We covered all the Laser Quiz Questions in this post for free so that you can practice well for the exam.

We also covered some other related topics like photometry and light MCQ on our website for free. You can also practice them. Please do check them from the links provided in the related posts section below.

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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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