- A10–10m.
- B10–6m.
- C10–15m.
- D10–14m.
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Assuming that universe is expanding, if the spectrum of light coming from a star which is going away from earth is tested, then in the wavelength of light
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(a) There will be no change |
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(b) The spectrum will move to infrared region |
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(c) The spectrum will seems to shift to ultraviolet side |
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(d) None of the above |
In a tangent galvanometer a current of 0.1 A produces a deflection of 30o. The current required to produce a deflection of 60o is
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(a) 0.2 A |
(b) 0.3 A |
(c) 0.4 A |
(c) 0.5 A |
Which of the following diagrams, shows correctly the dispersion of white light by a prism
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(a)
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(b)
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(c)
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(d)
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Three semi-conductors are arranged in the increasing order of their energy gap as follows. The correct arrangement is
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(a) Tellurium, germanium, silicon |
(b) Tellurium, silicon, germanium |
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(c) Silicon, germanium, tellurium |
(d) Silicon, tellurium, germanium |