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A transmitter transmits a power of 10 kW when modulation is 50%. Power of carrier wave is A transmitter transmits a power of 10 kW when modulation is 50%. Power of carrier wave is October 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

An antenna current of an AM broadcast transmitter modulated by 50% is 11 A. The An antenna current of an AM broadcast transmitter modulated by 50% is 11 A. The October 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Mean optical power launched into an 8 km fibre is 120 mu W and mean output power is 4 mu W, then the overall attenuation is Mean optical power launched into an 8 km fibre is 120 mu W and mean output power is 4 mu W then the overall attenuation is October 23, 2020 [...]

The electron density of E, F1, F2 layers of ionosphere is 2 * 10^11, 5 * 10^11 and 8 * 10^11 m^-3 respectively. What is the ratio of critical frequency for reflection of radiowaves ? 5 * 10^11 and 8 * 10^11 m^-3 respectively. What is the ratio of critical frequency for reflection of radiowaves [...]

In an FM system a 7 kHz signal modulates 108 MHz carrier so that frequency deviation is 50 KHz. The carrier swing is In an FM system a 7 kHz signal modulates 108 MHz carrier so that frequency deviation is 50 KHz. The carrier swing is October 23, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

A flywheel rotates about an axis. Due to friction at the axis, it experiences an angular retardation proportional to its angular velocity. If its angular velocity falls to half while it makes n rotations, how many more rotations will it make before coming to rest? A flywheel rotates about an axis. Due to friction at [...]

The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then the angular acceleration of the body is The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then the angular acceleration of the body is October 23, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]

A wheel is subjected to uniform angular acceleration about its axis. Initially, its angular velocity is zero. In the first 2sec, it rotates through an angle θ1, in the next 2sec, it rotates through an angle θ2. The ratio of θ2/θ1 is A wheel is subjected to uniform angular acceleration about its axis. Initially in [...]

A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute, then the increase in its angular velocity is A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute then the increase in its angular velocity is October 23, 2020 [...]

An optical fibre communication system works on a wavelength of 1.3 mu m. The number of subscribers it can feed if a channel requires 20 KHz are An optical fibre communication system works on a wavelength of 1.3 mu m. The number of subscribers it can feed if a channel requires 20 KHz are October [...]