Find out the circumference of a sector whose radius is 14 cm and it makes the angle of 45 degrees at the centre.
The refractive indices of quartz crystal for right handed and left handed circularly polarized light of wavelength 762.9 nm are 1.5391 and 1.5392 respe...
A 220 V, 100 W bulb is connected to a 110 V source. Calculate the power consumed by the bulb
Current sensitivity of a moving coil galvanometer is 9 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 30 div/V. The...
The coefficient of volume expansion of glycerin is 49 × 10-5 K-1. Find the fractional change in its density for a 20°C rise i...
A meter stick moves along its length with a certain speed. The apparent length of the moving meter stick as measured by a stationary observer on the gr...
The diameter of a capillary is 4mm. If Reynolds's number of the tube is 1000 and the co-efficient of viscosity for water is 0.02 poise, determine the m...
When a forward bias is applied to a p-n junction, it
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
A battery of emf 12 V and internal resistance 4 ohm is connected to a resistor. If the current in the circuit is 0.6 A, what is the resistance of the re...
