MCQ
Two pulses on a string approach each other at speeds of $1 m/s$. What is the shape of the string at $t = 3s$ :-
- A
- B
- ✓
- D
✓
Answer
Correct option: C.
c
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A disc of mass $m$ and radius $R$ is attached to celling with the help of ropes of length $l$. Find the time period of small oscillation of disc in the plane of disc.
→A number of holes are drilled along a diameter of a disc of radius $R$. To get minimum time period of oscillations the disc should be suspended from a horizontal axis passing through a hole whose distance from the centre should be
→Two cars are travelling towards each other at speed of $20 \mathrm{~m} \mathrm{~s}^{-1}$ each. When the cars are $300 \mathrm{~m}$ apart, both the drivers apply brakes and the cars retard at the rate of $2 \mathrm{~m} \mathrm{~s}^{-2}$. The distance between them when they come to rest is :
→The rate of recombination or generation are governed by the law(s) of
Two cars are moving in the same direction with the same speed $30 \,km/hr$. They are separated by a distance of $5\, km$, the speed of a car moving in the opposite direction if it meets these two cars at an interval of $4$ minutes, will be.......$km/hr$
→Wave has simple harmonic motion whose period is $4\; sec$ while another wave which also possesses simple harmonic motion has its period $3\; sec$. If both are combined, then the resultant wave will have the period equal to ....... $sec$
→The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of $x$ from it, is $I(x)$. Which one of the graphs represents the variation of $I(x)$ with $x$ correctly?
→A stretched string is vibrating in its $5^{th}$ harmonic as shown. Consider a particle $1(figure)$. At an instant this particle is at mean positions and is moving towards its negative extreme. Which of the following set of particles, are in same phase with particle $1$
→Two identical capacitors A and B are charged to the same potential V and are connected in two circuits at t = 0 as shown in figure. The charges on the capahltors at a time t = CR are, respectively:
Which of the following graphs is/are correct.