Question Answers
Sahay Sir > Question Answers
Consider a uniform spherical charge distribution of radius R1 centred at the origin O. In this distribution a spherical cavity of radius R2, centred at P with distance OP = a = R1 − R2 (fig) is made.If the electric field inside the cavity at position r, then the correct statement is
01
Nov
Consider a uniform spherical charge distribution of radius R1 centred at the origin O. In this distribution a spherical cavity of radius R2, centred at P with distance OP = a = R1 − R2 (fig) is made.If the electric field inside the cavity at position r, then the correct statement is centred at P [...]
The amplitude of a wave disturbance propagating in the positive y direction is given by y = 1 / 1+x^2 at t = 0 and y = 1 / (1 + (x – 1)^2) at t = 2 s The wave speed is
01
Nov
The amplitude of a wave disturbance propagating in the positive y direction is given by y = 1 / 1+x^2 at t = 0 and y = 1 / (1 + (x – 1)^2) at t = 2 s The wave speed is The amplitude of a wave disturbance propagating in the positive y direction [...]
In SHM phase difference between displacement and velocity is ϕ1 and that between displacement and acceleration is ϕ2 then
01
Nov
In SHM phase difference between displacement and velocity is ϕ1 and that between displacement and acceleration is ϕ2 then In SHM phase difference between displacement and velocity is ϕ1 and that between displacement and acceleration is ϕ2 then November 1, 2020 Category: Arihant Physics by D.C Pandey , Chapter 11 - SHM , Volume 1 [...]
A mass of 0.2 kg is attached to the lower end of a massless spring of force-constant 200 N/m, the upper end of which is fixed to a rigid support. Which of the following statements is /are true?
01
Nov
A mass of 0.2 kg is attached to the lower end of a massless spring of force-constant 200 N/m, the upper end of which is fixed to a rigid support. Which of the following statements is /are true? A mass of 0.2 kg is attached to the lower end of a massless spring of force [...]
A piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire.
01
Nov
A piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire. A piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 N. A wave with [...]
The equation of a wave travelling on a string is Y = 4 sin pie/2 (8t – x/8) if x and y are in centimetres, then velocity of wave is (1) 64 cm/s in -ve direction (2) 32 cm/s in -ve direction
01
Nov
The equation of a wave travelling on a string is Y = 4 sin pie/2 (8t – x/8) if x and y are in centimetres, then velocity of wave is (1) 64 cm/s in -ve direction (2) 32 cm/s in -ve direction The equation of a wave travelling on a string is Y = 4 [...]
The dimensions of (force constant ÷ mass)^1/2 of SHM are same that of
01
Nov
The dimensions of (force constant ÷ mass)^1/2 of SHM are same that of The dimensions of (force constant ÷ mass)^1/2 of SHM are same that of November 1, 2020 Category: Arihant Physics by D.C Pandey , Chapter 11 - SHM , Volume 1 ,
Two travelling transverse waves each of frequency f amplitude A and phase difference phi superimpose to form another travelling wave. The resulting wave travels in a string of tension
01
Nov
Two travelling transverse waves each of frequency f amplitude A and phase difference phi superimpose to form another travelling wave. The resulting wave travels in a string of tension Two travelling transverse waves each of frequency f amplitude A and phase difference phi superimpose to form another travelling wave. The resulting wave travels in a [...]
A steel wire has a mass of 50 g/m and is under tension 450 N. (a) Find the maximum average power that can be carried by the transverse wave in the wire if the amplitude is not to
01
Nov
A steel wire has a mass of 50 g/m and is under tension 450 N. (a) Find the maximum average power that can be carried by the transverse wave in the wire if the amplitude is not to A steel wire has a mass of 50 g/m and is under tension 450 N. (a) Find [...]
Two point masses of 3 kg and 6 kg are attached to opposite ends of horizontal spring whose spring constant is 300Nm^−1 as shown in the figure. The natural vibration frequency of the system is approximately
01
Nov
Two point masses of 3 kg and 6 kg are attached to opposite ends of horizontal spring whose spring constant is 300Nm^−1 as shown in the figure. The natural vibration frequency of the system is approximately A light spring of force constant 8Nm^−1 is cut into two equal halves and the two are connected in [...]