At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:
Repulsive forces
Attractive forces
Gravitational forces
Electromagnetic forces
The intensity level of whispering is:
20 dB
30 dB
40 dB
50 dB
Mice can hear frequencies upto:
100, 000 Hz
25.000 Hz
120,000 Hz
1,000 Hz
The basic operations performed by a computer are:
Arithmetic operations
Non-arithmetic operations
Logical operations
Both a and c