1
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A train whistling at constant frequency $$n$$ is moving towards a station at a constant speed $$v$$. The train goes past a stationary observer on the station. The frequency $$n$$ of the sound as heard by the observer is plotted as a function of time $$t$$. Identify the correct curve.

A
KCET 2020 Physics - Waves Question 7 English Option 1
B
KCET 2020 Physics - Waves Question 7 English Option 2
C
KCET 2020 Physics - Waves Question 7 English Option 3
D
KCET 2020 Physics - Waves Question 7 English Option 4
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The equation of a stationary wave is $$y=2 \sin \left(\frac{\pi x}{15}\right) \cos (48 \pi t)$$. The distance between a node and its next antinode is

A
7.5 units
B
1.5 units
C
22.5 units
D
30 units
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
First overtone frequency of a closed pipe of length $l_1$ is equal to the second harmonic frequency of an open pipe of length $l_2$. The ratio $\frac{l_1}{l_2}$ is equal to
A
$\frac{3}{4}$
B
$\frac{4}{3}$
C
$\frac{3}{2}$
D
$\frac{2}{3}$
4
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The waves set up in a closed pipe are
A
longitudinal and progressive
B
transverse and progressive
C
transverse and stationary
D
longitudinal and stationary
KCET Subjects
EXAM MAP