Totally reflecting prism is used in:
Periscope
Binoculars
Periscope and binocular
Telescope
The value of K in SI unit is:
9X1020 Nm2C2
8X109Nm2C2
9X109Nm2C2
10X10-9 Nm2C-2
J.J Thomson observed deflection of cathode rays in:
1895
1896
1897
1998
The phenomena used in capacitor is:
electrostatic induction
induced current
electric field
electroscope
The cathode ray oscilloscope consists of main parts:
Two
Three
Four
Five
By keeping resistance constant if we double the voltage then current will be:
Double
4 times
¼ times
Half