Figure below shows a simple X-ray tube `P_(1)` and `P_(2)` are power supplies which generate `6V` and `40,000V` respectively. Show how you will connect these power supplies to the X-ray tube so that it starts producing X-rays.

Explain how the intensity and penetrating power of X-ray are controlled in a Coolidge X-ray tube.

Figure shows five capacitors connected across a 12V power supply. What is the charge on the 2muF capacitor ?

Figure below shows a simple diagram of a modern X ray tube. (i.e. Coolidge tube). (i) Find the minimum wavelength of the X rays emitted by the X ray tube. (ii) What will be the effect of replacing the 6V battery with a 9V battery on the emitted X rays?

With a d.c power supply giving 10mA at a p.d of 50 kV. The power of the emitted x-ray is 5 watt. The efficiency of the x-ray tube is

An X-ray tube is operating at 150 kV and 10 mA. If only 1% of the electric power supplied is converted into X-rays, the rate at which the target is heated in calories per second is

Two source of light emit X - rays of wavelenght 1 nm and visible light of wavelength 500 nm respectively . Both the source emit light of the same power 200 W. The ratio of the number density of photons of X - rays to the number density of photons of the visible light of the given wavelengths

Figure (A) and (B) show two resistors with resistances R_(1) and R_(2) connected in parallel and in series. The battery has a terminal voltage of e. Suppose R_(1) and R_(2) are connected in parallel . (a) Find the power delivered to each resistor. (b) Show that the power used by each resistor is equal to the power supplied by the battery . Suppose R_(1) and R_(2) are now connected in series (c ) Find teh power delivered to each resistor. (d) Show that the sum of the power by each resistor is equal to the power supplied by the battery. (e ) Which configuration , parallelor series, uses more power ?

Figure shows a point source P inside a water container. Three rays A,B and C starting from the source P are shown up to the water surface. (a) show in the diagram the path of these rays after striking the water surface. The critical angle for water-air surface is 48^(@) . (b) Name the phenomenon which the rays A, B and C exhibit. .

Which one of the following statements is wrong in the context of X-ray generated from and X-ray tube?

Figure below shows a capacitor C, an inductor L and a resistor R, connected in series to an a.c. supply of 220 V. Average power consumed by the circuit.