KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 29 - 31 of 268

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Question number: 29

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 2010

MCQ▾

Question

In Young’s double slit experiment, the distance between the two slits is 0.1 mm, the distance between the slits and the screen is 1 m and the wavelength of the light used is 600 nm. The intensity at a point on the screen is 75 % of the maximum intensity. What is the smallest distance of this point from the central fringe?

Choices

Choice (4) Response

a.

0.5 mm

b.

1.5 mm

c.

1.0 mm

d.

2.0 mm

Question number: 30

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 2010

MCQ▾

Question

Consider the infinite ladder circuit shown below.

 The infinite ladder circuit of capacitor C and inductor L.

the Infinite Ladder Circuit of Capacitor C and Inductor L.

In figure the infinite ladder circuit of capacitor C and inductor L is shown.

For which angular frequency ω will the circuit behave like a pure inductance?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 31

» Electrostatics » Forces Between Multiple Charges

Appeared in Year: 2010

MCQ▾

Question

Three equal charges + q are placed at the three vertices of an equilateral triangle centered at the origin. They are held in equilibrium by a restoring force of magnitude F (r) = Kr directed towards the origin, where k is a constant. What is the distance of the three charges from the origin?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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