Laser Quiz Questions

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

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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

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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

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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

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Emitting light only in one direction is called 1. Divergence 2. Directionality 3. Convergence 4. Interference

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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

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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

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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

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Emitting light in all directions is called 1. Directionality 2. Divergence 3. Convergence 4. None of these

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