Home
Class 12
PHYSICS
Assertion : A diode lasers are used as o...

Assertion : A diode lasers are used as optical sources in optical communication.
Reason : Diode lasers consume less energy

A

Statement-1 is true, statement-2 is true, statement-2 is correct explanation for statement-1

B

statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-1

C

statement-1 is true,statement-2 is false

D

statement-1 is false, statement-2 is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 2|42 Videos

  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 3|13 Videos

  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 3|13 Videos

  • CAPACITANCE

    RESONANCE ENGLISH|Exercise High Level Problems|16 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise High Level Problems (HIP)|19 Videos

Similar Questions

Explore conceptually related problems

Statement-I : Diode lasers are used as optical sources in optical communication. Statement-II : Diode lasers consume less energy.

Assertion : Electron microscope has more resolving power than optical microscope. Reason : We can control the energy of electron.

Assertion: Space waves are used for line -of -sight communication. Reason: Space wave travels in a straight line from transmitting antenna to the receiving antenna.

Assertion : Zener diode is used to obtain voltage regulation Reason : When Zener diode is operated in reverse bias, after a certain voltage (breakdown voltage) the current suddenly increases.

Optical fibre communication uses the frequency range of

STATEMENT-1 : A photodiode is used in receivers in optical communication STATEMENT-2 The photodiode has a resistance that varies according to intensity of light incident on it

Assertion : Transformers are used only in alternating current source not in direct current. Reason : Only a.c. can be stepped up or down by means of transformers.

Assertion: Microwave communication is preferred over optical communication. Reason: Information carrying capacity is directly proportional to bandwidth.

Assertion : Optical fibres make use of total internal reflection. Reason : Light undergoes successive total internal reflections as it moves through an optical fibre.