MCQ
Two photons having _________________:
  • A
    Equal wavelengths have equal linear momenta
  • B
    Equal energies have equal linear momenta
  • C
    Equal frequencies have equal linear momenta
  • D
    Equal linear momenta have equal wavelengths

Answer

  1. Equal wavelengths have equal linear momenta

Explanation:

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.

Start Generating Free

Similar questions

Assertion : Fax is a modulating and demodulating device.

Reason     : It is necessary for exact reproduction of a document.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If assertion is false but reason is true.

Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is
Image

Assertion :  No interference pattern is detected when two coherent sources are infinitely close to each other.

Reason     : The fringe width is inversely proportional to the distance between the two slits.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.

The effective resistance between points A and B is

(a) 10 Ω  

(b) 20 Ω

(c) 40 Ω

(d) None of the above three values

A man wearing glasses of focal length +1m cannot clearly see beyond 1m:
  1. If he is farsighted.
  2. If he is nearsighted.
  3. If his vision is normal.
  4. In each of these cases.
In one average-life:
  1. Half the active nuclei decay.
  2. Less than half the active nuclei decay.
  3. More than half the active nuclei decay.
  4. All the nuclei decay.
Thin films like soap bubbles and oil floating on water can create colorful patterns. Which of the following explanations most accurately describes why this happens?
As the mass number A increases, which of the following quantities related to a nucleus do not change?

A bulb rated at (100W – 200V) is used on a 100V line. The current in the bulb is

(a) amp     

(b) 4 amp

(c)  amp

(d) 2 amp

In Young's double-slit experiments, a monochromatic light source is used. The shape of interference fringes produced on screen will be :