Ultrasound waves carry energy:
Less
More
Equal
None of these
If there is divergence of leaves by touching a body with electroscope then the body is:
Semi conductor
Neutral
charge body
Insulator
AND operation is represented by:
Dot (.)
Addition (+)
Division (÷)
Minus (-)
Old people cannot hear sound above than:
1000 Hz
15000 Hz
20000 Hz
The value or current I passing through a conductor is inversely proportional to:
Temperature
Potential difference
e.m.f.
resistance