Objective bihar board

12th English Answer Key 2022 Set-A to J | English Objective Answer Key 2022 Bihar Board

A board measures 6 feet by 4 feet. The edges of this board are to be decorated by a coloured strip costing 18 per feet. Find the cost of decorating the board edges.

An eraser weighing 2N is pressed against the black board with a force of 5N. If the coefficient of friction is 0.4. How much force parallel to the black board is required to slide the eraser upwards

Terminal velocity (V) of a spherical object varies with a radius of object (r) -

A flat horizontal board moves up and down under SHM vertically with amplitude A. The shortest permissible time period of the vibration such that an object placed on the board may not lose contact with the board is

A chess board contains 64 equal squares and the area of each square is 6. 25\ c m^2 . A border round the board is 2 cm wide. Find the length of the side of the chess board.

A chess board contains 64 equal squares and the area of each square is 6. 25\ c m^2 . A border round the board is 2 cm wide. Find the length of the side of the chess board.