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Unit vectors P and Q are inclined at an angle theta. Prove that P – Q = 2 sin (theta/2) Unit vectors P and Q are inclined at an angle theta. Prove that P - Q = 2 sin (theta/2) September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Three waves of equal frequency having amplitude 10mm, 4mm and 7mm arrive at a given point with successive phase difference is pie/2.The amplitude of the resulting wave in mm is given by 4mm and 7mm arrive at a given point with successive phase difference is pie/2.The amplitude of the resulting wave in mm is given [...]

A sound wave is incident as shown. 50 % of intensity is reflected and 50 % is transmitted. The ratio of minimum to maximum intensity will be A sound wave is incident as shown. 50 % of intensity is reflected and 50 % is transmitted. The ratio of minimum to maximum intensity will be September [...]

Two interfering waves of the same frequency have an intensity ratio 16 : 1. The ratio of intensities at the maximum and the minima is Two interfering waves of the same frequency have an intensity ratio 16 : 1. The ratio of intensities at the maximum and the minima is September 17, 2020 Category: Cengage [...]

Two concentric conducting thin spherical shells A and B having radii rA and rB ( rB > rA 0 are charged to Qa and -Qb (QB >QA) . The electrical field along a line (passing through the centre ) is Two concentric conducting thin spherical shells A and B having radii rA and rB ( [...]

Waves from two sources of intensities l and 4 l interfere at a point. The resultant intensity at a point where the phase difference is pie/2 is Waves from two sources of intensities l and 4 l interfere at a point. The resultant intensity at a point where the phase difference is pie/2 is September [...]

Two waves are represented by the equations y​ = a sin (ωt – kx) and y​ = – a cos (ωt – kx) are superposed. The resultant wave will have an amplitude Two waves are represented by the equations y​ = a sin (ωt - kx) and y​ = - a cos (ωt - kx) [...]

Can you find at least one vector perpendicular to 3i – 4j + 7k? Can you find at least one vector perpendicular to 3i - 4j + 7k? September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Equations of motion in the same direction are given by: y1​=a sin (ωt−kx) y2​=a sin (ωt−kx−θ) The amplitude of the medium particle will be: Equations of motion in the same direction are given by: y1​=a sin (ωt−kx) y2​=a sin (ωt−kx−θ) The amplitude of the medium particle will be: September 17, 2020 Category: Cengage NEET by [...]

An infinitely long wire is kept along z – axis from z = -infinity to z = + infinity , having linear charge density 10/9 n C/ m . The electric field at point ( 6 cm, 8 cm, 10 cm ) 10 cm ) 8 cm An infinitely long wire is kept along z [...]