Neet Solved Paper 2013 Question 22
Question: A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency 513 Hz. The unknown frequency is
Options:
A) 254 Hz
B) 246 Hz
C) 240 Hz
D) 260 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
Here, Hence, unknown frequency is 254 Hz.
BETA
