Physics What measures Air pressure? Barkometer Bolometer Spectrometer Barometer Barkometer Bolometer Spectrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R 4 R/5 R/5 5 R/4 5 R 4 R/5 R/5 5 R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics What is the principle of a ''Life Jacket"? It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 2268 J 4.2 J 80 J 336 J 2268 J 4.2 J 80 J 336 J ANSWER DOWNLOAD EXAMIANS APP
Physics Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct? 1 only 1, 2 and 3 1 and 2 only 2 and 3 only 1 only 1, 2 and 3 1 and 2 only 2 and 3 only ANSWER DOWNLOAD EXAMIANS APP
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