51.

The ‘rad’ is the correct unit used to report the measurement of

• the rate of decay of radioactive source

• the ability of a beam of gamma ray photons to produce ions in a target

• the energy delivered by radiation to a target.

• the energy delivered by radiation to a target.

If the binding energy per nucleon in and nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction


energy of proton must be

• 39.2 MeV

• 28.24 MeV

• 17.28 MeV

• 17.28 MeV

If the lattice constant of this semiconductor is decreased, then which of the following is correct?

• All E_c, E_g, E_v decrease

• All E_c, E_g, E_v increase

• E_c, and E_v increase but E_g decreases

• E_c, and E_v increase but E_g decreases

In the following, which one of the diodes is reverse biased?

The circuit has two oppositely connect ideal diodes in parallel. What is the current following in the circuit?

• 1.33 A

• 1.71 A

• 2.00 A

• 2.00 A