1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The mean free path of molecules of a gas, (radius r) is inversely proportional to
A
r3
B
r2
C
r
D
$$\sqrt r $$
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The oscillation of a body on a smooth horizontal surface is represented by the equation,
X = A cos$$\left( {\omega t} \right)$$
where X = displacement at time t
$$\omega $$ = frequency of oscillation
Which one of the following graphs shows correctly the variation a with t?
Here a = acceleration at time t
T = time period
A
AIPMT 2014 Physics - Oscillations Question 40 English Option 1
B
AIPMT 2014 Physics - Oscillations Question 40 English Option 2
C
AIPMT 2014 Physics - Oscillations Question 40 English Option 3
D
AIPMT 2014 Physics - Oscillations Question 40 English Option 4
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
If n1, n2 and n3 are the fundamental frequencies of three segments into which a string is divided, then the original fundamental frequency n of the string is given by
A
$${1 \over n} = {1 \over {{n_1}}} + {1 \over {{n_2}}} + {1 \over {{n_3}}}$$
B
$${1 \over {\sqrt n }} = {1 \over {\sqrt {{n_1}} }} + {1 \over {\sqrt {{n_2}} }} + {1 \over {\sqrt {{n_3}} }}$$
C
$$\sqrt n = \sqrt {{n_1}} + \sqrt {{n_2}} + \sqrt {{n_3}} $$
D
n $$=$$ n1 + n2 + n3
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km hour$$-$$1. He finds that traffic has eased and a car moving ahead of him at 18 km hour$$-$$1 is honking at a frequency of 1392 Hz. If the speed of sound is 343 m s$$-$$1, the frequency of the honk as heard by him will be
A
1332 Hz
B
1372 Hz
C
1412 Hz
D
1454 Hz
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