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A stretched string of length 1 m has mass per unit length 0.5 g. The tension in the string is 20 N. If it is plucked at a distance of 25 cm from one end, the frequency of vibration will be A stretched string of length 1 m has mass per unit length 0.5 g. [...]

A wave of frequency 100 Hz is sent along a string towards a fixed end. When this wave travels back after reflection, a node is formed at a distance of 10 cm from the fixed end of the string. The speed of incident wave is a node is formed at a distance of 10 cm [...]

Forces X, Y. and Z have magnitudes 10 N 5 (root 3 – 1)N and 5 (root 3 + 1) N, respectively. The forces Y and Z act in the same direction as shown in Fig. The resultant of X and Y and the Forces X respectively. The forces Y and Z act in the [...]

A tuning fork of frequency 480Hz is used to vibrate a sonometre wire having natural frequency 240 Hz. The wire will vibrate with a frequency of. A tuning fork of frequency 480Hz is used to vibrate a sonometre wire having natural frequency 240 Hz. The wire will vibrate with a frequency of. September 17, 2020 [...]

Charges of +10/3 x 10^-9 C are placed at each of the four corners of a square of side 8 cm. The potential intersection of the diagonals is Charges of +10/3 x 10^-9 C are placed at each of the four corners of a square of side 8 cm. The potential intersection of the diagonals [...]

A particle has an initial velocity of 3i + 4j and an acceleration of 0.4i + 0.3j. Find speed after 10 s. A particle has an initial velocity of 3i + 4j and an acceleration of 0.4i + 0.3j. Find speed after 10 s. September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

A sonometre wire is in resonance with a tuning fork. Keeping the same tension, the length of the wire between the bridges is doubled. It can still be in resonance with the tuning fork provided it vibrates in: A sonometre wire is in resonance with a tuning fork. Keeping the same tension the length of [...]

A particle travels with speed 50 m/s from the point (3, -7) in a direction 7i – 24 j. Find its position vector after 3 s. -7) in a direction 7i - 24 j. Find its position vector after 3 s. A particle travels with speed 50 m/s from the point (3 September 17, 2020 [...]

Three charges 2q, -q and -q are located at the vertices of an equilateral triangle. At the center of the triangle, -q and -q are located at the vertices of an equilateral triangle. At the center of the triangle Three charges 2q September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The fractional change in tension in a sonometre wire of fixed length to produce a note one octave lower than before is The fractional change in tension in a sonometre wire of fixed length to produce a note one octave lower than before is September 17, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]