Question Answers

A Point charge is surrounded symmeterically by six identical charges at distance r as shown in the figure. How much work is done by the forces of electrostatic replusion when the point charge q at the center is removed at infinity ? A charge -q and another chage +q are kept at two points A [...]

A string is fixed at both ends vibrates in a resonant mode with a separation 2.0 cm between the consecutive nodes. For the next higher resonant frequency, this separation is reduced to 1.6 cm. The length of the string is A string is fixed at both ends vibrates in a resonant mode with a separation [...]

From fig 3.76, the correct relation is From fig 3.76 the correct relation is September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A vector perpendicular to i + j + k is A vector perpendicular to i + j + k is September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

When a stretched string of length L vibrating in a particular mode, the distance between two nodes on the string is l. The sound produced in this mode of vibration constitutes the nth overtone of the fundamental frequency of the string. the distance between two nodes on the string is l. The sound produced in [...]

The minimum number of vectors having different planes which can be added to give zero resultant is The minimum number of vectors having different planes which can be added to give zero resultant is September 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The sum and difference of two perpendicular vectors of equal length are a. Perpendicular to each other and of equal length b. Perpendicular to each other and of different lengths The sum and difference of two perpendicular vectors of equal length are a. Perpendicular to each other and of equal length b. Perpendicular to each [...]

Three resonant frequencies of a string are 90, 150 and 210 Hz. The highest possible fundamental frequency of vibration of this string will be 150 and 210 Hz. The highest possible fundamental frequency of vibration of this string will be Three resonant frequencies of a string are 90 September 17, 2020 Category: Cengage NEET by [...]

If A = 2i + j and B = i – j, sketch vectors graphically and find the component of A along B and perpendicular to B. If A = 2i + j and B = i - j sketch vectors graphically and find the component of A along B and perpendicular to B. September [...]

In order to increase the frequency of transverse oscillations of a stretched wire by 50%, its tension must be increased by In order to increase the frequency of transverse oscillations of a stretched wire by 50% its tension must be increased by September 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - [...]