- Mercury thermometer
- Radiation pyrometer
- Bimetallic thermometer
- Thermocouple
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On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for this difference is that?
Answer: Option 1 On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for...
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Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases.?
Answer: Option 1 Let'
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According to Fleming's right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of?
Answer: Option 2 Let'
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When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the?
Answer: Option 1 Le Chatelier's principle states that a system will react to a change (disturbing the equilibrium) in such a way that it minimizes the change.
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A direction pole was situated on the crossing. Due to an accident the pole turned in such a manner that the pointer which was showing East, started showing South. One traveler went to wrong direction thinking to be West. In what direction actually he was traveling?
Answer: Option 3 As East becomes South, therefore, the pole has turned through 900 in anticlockwise direction. hence, the West will be North.
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Ten new television shows appeared during the month of September. Five of the shows were sitcoms, three were hour-long dramas, and two were news-magazine shows. By January, only seven of these new shows were still on the air. Five of the shows that remained were sitcoms.?
Answer: Option 3 If there were seven shows left and five were sitcoms, this means that only two of the shows could possibly be dramas. Choices a and b may...
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Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
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Which of the following permits a microwave signal to travel in one direction with virtually no loss, but severely attenuates any signal attempting to travel in the reverse direction?
Answer: Option 1 Let'
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The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is?
Answer: Option 1 Let'
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