Question
Electrically, photons are:
✓
Answer
- Neutral.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A series combination of two resistors $1\Omega$ each is connected to a $12\ V$ battery of internal resistance $0.4\Omega.$ The current flowing through it will be
→An ammeter of 5 ohm resistance can read 5 mA. If it is to be used to read 100 volts, how much resistance is to be connected in series(a) 19.9995 Ω(b) 199.995 Ω(c) 1999.95 Ω(d) 19995 Ω
If the two ends of a p-n junction are joined by a wire:
Which of the following are not units of self inductance?
A particle moves in a closed orbit around the origin, due to a force which is directed towards the origin. The de Broglie wavelength of the particle varies cyclically between two values $\lambda _1, \lambda _2$ with $\lambda _{1 }> \lambda _2$. Whichof the following statement are true?
→Which of the following is a mechanical wave?
-
Radio waves.
-
X-rays.
-
Light waves.
-
Sound waves.
Figure shows the magnetic field lines in a magnetic field. A, B. and C are three points in this field. At what point is the magnetic field strong ?
Which of the following is based on mechanical effect of electric current?
Two bulbs of equal wattage, one having carbon filament and the other having a tungsten filament are connected in series to the mains, then(a) Both bulbs glow equally(b) Carbon filament bulb glows more(c) Tungsten filament bulbs glows more(d) Carbon filament bulb glows less
Let r be the distance of a point on the axis of a magnetic dipole from its centre. The magnetic field at such a point is proportional to: