A proton accelerated by a potential difference 500 KV moves though a transverse magnetic field of 0.51T as shown in figure. The angle θ through which the proton deviates from the initial direction of its motion is (a) 15° (b) 30° (c) 45° (d) 60°

A proton accelerated by a potential difference 500 KV moves thoug…

Two streams of protons move parallel to each other in the same direction. They will:

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If we increase the driving frequency in a circuit with a purely resistive load, then amplitude VR.

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A parallel plate capacitor is made by stacking n equally spaced plates connected alternately. If the capacitance between any two plates is C then the resultant capacitance is

(a) C

(b) nC

(c) (n – 1)C

(d) (n + 1)C

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The chemical equivalent of silver is 108. If the current in a silver voltameter is 2 Amp., the time required to deposit 27 grams of silver will be

(a) 8.57 hrs

(b) 6.70 hrs

(c) 3.35 hrs

(d) 12.50 hrs

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A sonometer wire of length l vibrates in fundamental mode when excited by a tuning fork of frequency 416Hz. If the length is doubled keeping other things same, the string will:

Vibrate with a frequency of 416Hz
Vibrate with a frequency of 208Hz
Vibrate with a frequency of 832Hz
Stop vibrating.

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What is the type of the semiconductor, for the energy band diagram shown in the figure?

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An inductor, a resistance and a capacitor are joined in series with an AC source. As the frequency of the source is slightly increased from a very low value, the reactance:

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A particle having mass $m$ and charge $q$ is at rest. On applying a uniform electric field E on it, it starts moving. What is its kinetic energy when it travels a distant y in the direction of force ?

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The lateral displacement depends on ______:

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Two infinitely long parallel conducting plates having surface charge densities +σ and -σ respectively, are separated by a small distance. The medium between the plates is vacuum. If is the dielectric permittivity of vacuum, then the electric field in the region between the plates is