Home
Class 12
PHYSICS
The question has statement - 1 and stat...

The question has statement - 1 and statement - 2 Of the four choices given after the statements , choose the one that best describes the two statements
statement - 1 : Sky wave signals are used for long distance radio communication . These signals are in generel , less stable then ground wave signals
statement - 2 : The state of inosphere varies from to hour day and season to season .

A

Statement -1 is true, Statement -2 is false

B

Statement -1 is true, Statement -2 is true and Statement -2 is the correct explanation of Statement -1.

C

Statement -1 is true, Statement -2 is true and Statement – 2 is not the correct explanation of Statement – 1.

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

This questions has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes into two Statements. Statement-I : Higher the range, greater is the resistance of ammeter. Statement- II : To increase the range of ammeter, additional shunt needs to be used across it.

This question contains Statement-1 and Statement-2. Of the four choices given after the statements, choose the one that best describes the two statements. Statement-1: For a charged particle moving from point P to point Q, the net work done by an electrostatic field on the particle is independent of the path connecting point P to point Q. Statement-2: The net work done by a conservative force on an object moving along a closed loop is zero.

This question contains Statement - 1 and Statement -2 Of the four choice given after the Statements , choose the one that best decribes the two Statements Statement- 1: Energy is reased when heavy underge fission or light nuclei undergo fasion and Statement- 2: for nuclei , binding energy nucleon increases with increasing Z while for light nuclei it decreases with increasing Z

Choose the statement that best describes given compounds .

This question has statement - 1 and statement - 2 of the four choice given after the statements choose the one that best describes the two statements statement - 1 : A metallic surface is irradiated by a monochromatic light of frequency v gt v_(0) (the threshold frequency). The maxim,um kimetic energy and the stopping potential are K_(max) and V_(0) respectively if the frequency incident on the surface is doubled , both the K_(max) and V_(0) are also doubled statement - 2 : The maximum kinetic energy and the stopping potantial of photonelectron emitted from a surface are linearly dependent on the frequency of incident light

This question has statement 1 and statement 2 . Of the four choice given after the Statement , choose the one that best describe the two Statement . If the spring S_(1) and S_(2) of force constant k_(1) and k_(2) respectively , are streached by the same force , it is found that more work is done on spring S_(1) then on spring S_(2) Statement -1: If statement by the same answer work done on S_(1) work on S_(1) is more then S_(2) Statement - 2 : k_(1) ltk_(2)

This question has statement I and statement II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement I: A point particle of mass m moving with speed v collides with stationary point particle of mass M. If the maximum energy loss possible glven as f(1/2mv^2) then f=(m/(M+m)) Statement II: Maximum energy loss occurs when the particles get stuck together as a result of the collision.