Physics Archives - Page 11 of 16

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DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

The lower limit of frequency of sky wave is

A. 1MHz B. 1.5MHz C. 20MHz D. 30MHz

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

The upper limit of frequency of ground wave is

A. 1MHz B. 1.5MHz C. 20MHz D. 30MHz

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

Ozone layer is present in:

A. Troposphere B. Stratosphere C. Ionosphere D. Mesosphere

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

The crystal in which regularity of atoms or molecules extends over the entire crystal is known as

A. Single crystal B. Poly crystal C. Liquid crystal D. None of these

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

A p-type semiconductor is obtained by doping germanium crystal with

A. Silver B. Arsenic C. Gold D. Indium

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

If Germanium has to be doped with an acceptor impurity, the foreign atom should be

A. Monovalent B. Divalent C. Trivalent D. Tetravalent

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

The solid in which the conduction band and the valence band overlap on each other is called

A. Semiconductor B. Insulator C. Conductor D. Dielectric

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

An N-type semiconductor is obtained by doping Germanium crystal with

A. Copper B. Arsenic C. Gold D. Silver

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

Which of the following elements is a semiconductor?

A. C B. Ge C. As D. P

DeepanjaliEnlightened

Asked: August 21, 2021In: Physics

In full wave rectifier, ripple frequency will be

A. 10 Hz B. 25 Hz C. 50 Hz D. 100 Hz

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Physics

The lower limit of frequency of sky wave is

The upper limit of frequency of ground wave is

Ozone layer is present in:

The crystal in which regularity of atoms or molecules extends over the entire crystal is known as

A p-type semiconductor is obtained by doping germanium crystal with

If Germanium has to be doped with an acceptor impurity, the foreign atom should be

The solid in which the conduction band and the valence band overlap on each other is called

An N-type semiconductor is obtained by doping Germanium crystal with

Which of the following elements is a semiconductor?

In full wave rectifier, ripple frequency will be

The Constitution of India was adopted on

Who is the head of the state in India?

Who is the President of India?

Which cricket team has won the 2019-20 Vijay Hazare Trophy?

The words “Satyameva Jayate” in the State Emblem of India ...

GBiswal

Deepanjali

Pratibha

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