1

JEE Main 2020 (Online) 9th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

A wire of length L and mass per unit length
6.0 × 10

^{–3}kgm^{–1}is put under tension of 540 N. Two consecutive frequencies that it resonates at are : 420 Hz and 490 Hz. Then L in meters is :2

JEE Main 2020 (Online) 8th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

A simple pendulum is being used to determine
th value of gravitational acceleration g at a
certain place. Th length of the pendulum is
25.0 cm and a stop watch with 1s resolution
measures the time taken for 40 oscillations to
be 50 s. The accuracy in g is :

3

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

A simple harmonic motion is represented by :

y = 5 (sin 3 $$\pi $$ t + $$\sqrt 3 $$ cos 3 $$\pi $$t) cm

The amplitude and time period of the motion are :

y = 5 (sin 3 $$\pi $$ t + $$\sqrt 3 $$ cos 3 $$\pi $$t) cm

The amplitude and time period of the motion are :

4

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

A travelling harmonic wave is represented by the equation y(x,t) = 10

^{–3}sin (50t + 2x), where, x and y are in mater and t is in seconds. Which of the following is a correct statement about the wave ?Questions Asked from Simple Harmonic Motion (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates
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