Radiation having smaller wavelength is deflected at:

1. smaller angle
2. larger angle
3. any angle
4. right angle
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Answer: B
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The invisible region beyond the violet colour of visible light is called:

1. Near I.R region
2. I.R region
3. visible region
4. ultraviolet region
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Answer: D
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The invisible region below the red colour of visible light is called:

1. Microwave region
2. I.R region
3. visible region
4. ultraviolet region
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Answer: B
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Continuous spctrum is the characteristic of:

1. matter in bulk
2. atomic particles
3. atoms or their compounds
4. all of these
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Answer: A
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When solids or elements in the vapour state are heated to high temperature in a flame or discharge tube, they give;

1. Atomic absorption spectrum
2. line or atomic emmision spectrum
3. continuous spectrum
4. none of these
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Answer: B
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Elements or their compounds give:

1. line spectrum
2. atomic spectrum
3. both (a) and (b)
4. continuous spectrum
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Answer: C
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which colour Sodim salts give on bunsen burner flame:

1. red
2. violet
3. orange red
4. yellow
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Answer: D
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which colour Strontium gives on bunsen burner flame:

1. red
2. violet
3. orange red
4. yellow
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Answer: A
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which colour Potassium gives on bunsen burner flame:

1. red
2. violet
3. orange red
4. yellow
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Answer: B
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In discharge tube, neon glows with colour;

1. red
2. violet
3. orange red
4. yellow
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Answer: C
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