A length of `5.0 xx 10^1` cm when converted into meter can be written as

The length of a rod is exactly 1 m when measured at rest . What will be its length when it moves at a speed of (a) 3 xx 10^(5)m s ^(-1) (b) 3 xx 10^(6) m s^(-1) and ( c) 3 xx 10^(7) m s ^(-1) ?

The length of a rod is exactly 1 m when measured at rest . What will be its length when it moves at a speed of (a) 3 xx 10^(5)m s ^(-1) (b) 3 xx 10^(6) m s^(-1) and ( c) 3 xx 10^(7) m s ^(-1) ?

The length of a rod is exactly 1 m when measured at rest . What will be its length when it moves at a speed of (a) 3 xx 10^(5)m s ^(-1) (b) 3 xx 10^(6) m s^(-1) and ( c) 3 xx 10^(7) m s ^(-1) ?

A postage stamp has mass of 2.0xx10^(-5) kg. Its mass can be written as

A galvanometer, having a resistance of 50 Omega gives a full scale deflection for a current of 0.05 A . The length in meter of a resistance wire of area of cross-section 2.97 xx 10^(-2) cm^(2) that can be used to convert the galvanometer into an ammeter which can read a maximum of 5 A current is (Specific resistance of the wire 5 xx 10^(-7) omega m )

The pressure that has to be applied to the ends of a steel wire of length 10 cm to keep its length constant when its temperature is raised by 100^(@)C is (For steel, Young's modulus is 2 times 10^(11)N*m^(-2) and coefficient of linear expansion is 1.1 times 10^(-5)K^(-1))