AIPMT 2002 | NEET Year Wise Previous Years Questions

MCQ (Single Correct Answer)

When ultraviolet rays incident on metal plate then photoelectric effect does not occur, it occurs by incidence of

infrared rays

MCQ (Single Correct Answer)

To convert a galvanometer into a voltmeter one should connect a

high resistance in series with galvanometer

low resistance in series with galvanometer

high resistance in parallel with galvanometer

low resistance in parallel with galvanometer.

MCQ (Single Correct Answer)

A charge q moves in a region where electric field and magnetic field both exist, then force on it is

$$q\left( {\overrightarrow v \times \overrightarrow B } \right)$$

$$q\overrightarrow E + q\left( {\overrightarrow v \times \overrightarrow B } \right)$$

$$q\overrightarrow E + \overrightarrow q \left( {\overrightarrow B \times \overrightarrow v } \right)$$

$$q\overrightarrow B + \overrightarrow q \left( {\overrightarrow E \times \overrightarrow v } \right)$$

MCQ (Single Correct Answer)

The magnetic field of given length of wire for single turn coil at its centre is B then its value for two turns coil for the same wire is