Question
Two photons having _________________:
✓
Answer
- Equal wavelengths have equal linear momenta
Equal linear momenta have equal wavelengths.
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
Length of a magnetic iron wire is / and its magnetic moment is m. If on moulding it in the form of L, its all arms are of equal sizes, then magnetic moment of new shape will be:
A thin lens focal length $f_1$ and its aperture has diameter $d.$ It forms an image of intensity $I.$ Now the central part of the aperture upto diameter $\frac{d}{2}$ is blocked by an opaque paper. The focal length and image intensity will change to
→Resistivity of a wire depends on:
The amplitude of the magnetic field of a harmonic electromagnetic wave in vacuum is $B_{0 }= 510nT.$ The amplitude of the electric field part of the wave is:
→The sodium nucleus $^{23}_{11}Na$ contains
→Which of the following is not a correct statement with respect to the given circuit?
A thin oil layer floats on water. A ray of light making an angle of incidence of $40^\circ$ shines on oil layer. The angle of refraction of light ray in water is $\left(\mu_{\text{oil}}=1.45, \mu_{\text{water}}=1.33\right)$
→Thermocouple is a device for the measurement of(a) Absolute temperature of a metal(b) The temperature difference between two substances(c) The couple acting on a wire(d) Thermal conductivity of a substance
Value of potential at a point due to a point charge is (a) Inversely proportional to square of the distance(b) Directly proportional to square of the distance(c) Inversely proportional to the distance(d) Directly proportional to the distance
A straight wire of length $\left(\pi^2\right)$ metre is carrying a current of $2A$ and the magnetic field due to it is measured at a point distant $1 \ cm$ from it. If the wire is to be bent into a circle and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be
→