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Class 12th Physics

What is the difference between linear and angular momentum of the electron?

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Aadit Singh Uppal

Contributor-Level 10

Linear momentum refers to the motion in a straight line, from one point to another. And angular momentum is the rotational equivalent of linear momentum. Since the electrons move in circular tracks or orbitals, the angular momentum is used to calculate the movement of these electrons.

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Class 12th Physics

Resistance of given carbon resistor is

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alok kumar singh

Contributor-Level 10

01 * 10⁴ Ω ± 5% = 10 * 10³ Ω ± 5%

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Class 12th Physics

What was the first postulate stated by Bohr?

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Aadit Singh Uppal

Contributor-Level 10

This theory simply stated that there exist stationary orbits around the nucleus in which electrons rotate without dissipating any type of energy. And if the electrons try to change their orbits, then there will be a gain or loss of energy depending on the situation.

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Class 12th Physics

What is the current through an ideal P – N junction diode shown in figure below?

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alok kumar singh

Contributor-Level 10

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Class 12th Physics Alternating Current

The value of alternating emf (E) in the given circuit will be

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alok kumar singh

Contributor-Level 10

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Class 12th Physics Ray Optics and Optical Instruments

A farsighted person cannot focus distinctly objects closer than 100 cm. The lens that will permit him to read from a distance of 50 cm, will have a focal length:

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