NEET Physics Properties of EM Waves Assertion Reason Question
Assertion (A): Radio waves are efficiently radiated by a transmitting antenna when the wavelength is about the same size as the antenna.
Reason (R): The speed of electromagnetic waves is the same for all wavelengths in vacuum.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
Both the assertion and reason are true, but the reason does not explain the assertion since the efficient radiation by an antenna is related to the size-wavelength correlation, not the speed of EM waves.
Found an issue with this question?
Related Questions
More from
The equivalent inductance of two inductors is 2.4 H when connected in parallel and 10 H when connected in series. What is the value of inductances of ...
Which of the following types of electromagnetic waves was discovered last by the end of the nineteenth century?
Which of the following types of electromagnetic waves has the longest wavelength?