1
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Assertion To hear different beats difference of the frequencies of two sources should be less than 10.

Reason More the number of beats more in the confusion.

A
Both Assertion and Reason are correct, Reason is the correct explanation of Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
C
Assertion is correct and Reason is incorrect
D
Assertion is incorrect and Reason is correct
2
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

The driver of a car travelling with speed $$30 \mathrm{~ms}^{-1}$$ towards a hill sounds a horn of frequency $$600 \mathrm{~Hz}$$. If the velocity of sound in air is $$330 \mathrm{~ms}^{-1}$$, the frequency of reflected sound as heard by driver is :

A
$$550 \mathrm{~Hz}$$
B
$$555.5 \mathrm{~Hz}$$
C
$$720 \mathrm{~Hz}$$
D
$$500 \mathrm{~Hz}$$
AIIMS Subjects
EXAM MAP