Which is the correct device for the detection of thermal radiation? -Do You Know?

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Description : Which is the correct device for the detection of thermal radiation?

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Description : The most common device used for detection in radio receivers is   (A)amplifier (B) triode (C) diode (D) transistor

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Description : Which of the following in the correct device that converts thermal energy into electrical energy? (1) constant volume gas thermometer (2) liquid-in-glass thermometer (3) thermopile (4) none of these

Last Answer : (3) thermopile Explanation: A thermopile is an electronic device that converts thermal energy into electrical energy.

Description : How does a microwave oven heat up food even though it emits no thermal radiation? -Physics

Last Answer : A microwave oven does emit thermal radiation to heat up food. Microwave radiation is thermal radiation. For some reason, most sources have a mistaken notion that thermal radiation = infrared radiation ... a broad spectrum of frequencies with a certain shape that depends on the emitter's temperature.

Description : Who Discovered the Basic Principles of Thermal Radiation ?

Last Answer : Scientist Wilhelm Vin discovers the basic principles of thermal radiation.

Description : When a warm object is heated up why does the thermal radiation emits change?

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Description : When a warm object is heated up why does the thermal radiation it emits changes?

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Description : A bolometer is (A) Used for the measurement of thermal radiation (B) An element which senses optical input and delivers thermal output (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

Description : Thermal shield is used in high powered nuclear reactors to (A) Protect the walls of the reactor from radiation damage B) Absorb the fast neutrons (C) Slow down the secondary neutrons (D) Protect the fuel element from coming in contact with the coolant

Last Answer : (A) Protect the walls of the reactor from radiation damage

Description : Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of (A) Concrete (B) Steel (C) Zircaloy (D) Graphite

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Last Answer : (D) α = 1; ε = 1

Description : A diathermanous substance __________ the thermal radiation completely. (A) Absorbs (B) Reflects (C) Transmits (D) None of these

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Description : At Which Temperature Thermal Radiation Can Become Zero?

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Description : The radiation emitted by a body as a result of its temperature.  a. Blackbody Radiation  b. Thermal Inversion  c. Thermionic Inversion  d. Thermal Radiation

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Description : Thermal radiation is an electromagnetic radiation with wavelengths in _____ range.  A. 1 to 100 µm  B. 0.1 to 100 µm  C. 0.1 to 10 µm  D. 10 to 100 µm

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Description : Is this theory of how motion detection works correct?

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Description : Match the following columns and select the correct option. Column-I Column-II (A) Bt cotton (i) Gene therapy (B) Adenosine (ii) Cellular defence deaminase deficiency (C) RNAi (iii) Detection of HIV infection (D) PCR (iv) Bacillus ... (i) (iv) (c) (ii) (iii) (iv) (i) (d) (i) (ii) (iii) (iv)

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Description : The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal. The correct sequence of ... 4 (B) 2, 3, 4, 1 (C) 2, 4, 3, 1 (D) 3, 1, 2 , 4

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Description : Which metal is extracted by thermal reduction process? -Do You Know?

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Description : Why do you suppose it is that every vacuum bottle or such thermal device I’ve tried inevitably declines in its ability to keep things cold?

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Description : In a cartridge-type fuse, the metal element is contained in a ___________________. A. porcelain window B. thermal cut out C. fiber tube D. flasher device

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Description : Considered as the main source of an internal noise. A. Device imperfection B. Thermal agitation C. Temperature change D. Flicker

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Description : The thermal efficiency of a reversible heat engine operating between two given thermal reservoirs is 0.4. The device is used either as a refrigerator or as a heat pump between the same reservoirs. Then the coefficient of performance as a ... )R = 1.5; (COP)HP = 2.5 (D) (COP)R = (COP)HP = 2.5

Last Answer : (C) (COP)R = 1.5; (COP)HP = 2.5

Description : The first explosion of an atomic device in India was carried out in which state? -Do You Know?

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Last Answer : The kinect sensor is a good bet, since I don’t think webcams can do that motion sense thing very well. That will start you anyway.

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Description : Is there accent detection software?

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