Question Answers

The weight of an empty balloon on a spring balance is W1. The weight becomes W2 when the balloon is filled with air. Let the weight of the air itself be w. Neglect the thickness of the balloon when it is filled with air. Also neglect the difference in the density of air insider and [...]

The length, breadth, and thickness of a block are measured as 125.5 cm, 5.0 cm, and 0.32 cm, respectively. Which one of the measurement is most accurate?-duplicate-1 The length of a rectangular sheet is 1.5 cm and the breadth is 1.203 cm. Find the area of the face of a rectangular sheet to the correct [...]

A 20 N metal block is suspended by a spring balance. A beaker containing some water is placed on a weighing machine which reads 40 N. The spring balance is now lowered so that the blocks gets immersed in the water. The spring balance now reads 16 N. The reading of the weighing machine will [...]

A massless conical flask filled with a liquid is kept on a table in a vacuum the force exerted by the liquid on the base of the flask is W1. The force exerted by the flask on the table is W2 A massless conical flask filled with a liquid is kept on a table in [...]

The length, breadth, and thickness of a block are measured as 125.5 cm, 5.0 cm, and 0.32 cm, respectively. Which one of the measurement is most accurate? 5.0 cm and 0.32 cm and thickness of a block are measured as 125.5 cm breadth respectively. Which one of the measurement is most accurate? The length September [...]

A spring balance reads W1, when a ball is suspended from it. A weighing machine reads W2, when a tank of liquid is kept on it. When the ball is immersed in the liquid, the spring balance reads W3 and the weighing machine reads W4. A spring balance reads W1 the spring balance reads W3 [...]

If velocity (V), force (F), and energy (E) are taken as fundamental units, then find the dimensional formula for mass. and energy (E) are taken as fundamental units force F If velocity V then find the dimensional formula for mass. September 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

If P represents radiation pressure, C represents the speed of light, and Q represents radiation energy stinking a unit area per second, then non-zero integers x, y, and z such that p^x and Q represents radiation energy stinking a unit area per second and z such that p^x C represents the speed of light If [...]

If the time period (T) of vibration of a liquid drop depends on surface tension (S), radius (r) of the drop, and density (rho) of the liquid, then find the expression of T. and density (rho) of the liquid If the time period (T) of vibration of a liquid drop depends on surface tension (S) [...]

With the usual notations , check if the following equation St = u + 1/2 a(2t – 1) is dimensionally correct or not. check if the following equation St = u + 1/2 a(2t - 1) is dimensionally correct or not. With the usual notations September 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM [...]