4.A cube has a side of length 2 x 10-2m. Calculate its volume. [2003-2 marks]
Ans.
Ans.
Ans.
6.A wire of length 1 = 6±0.06 cm and radius r = 0.5 ± 0.005 cm and mass m = 0.3 ± 0.003 g . Maximum percentage error in density is [2004-2 marks]
a) 4 b) 2 c) 1 d) 6.8
Ans.
a) 4 b) 2 c) 1 d) 6.8
Ans.
7.Which of the following sets have different dimensions ? [2005-2 marks]
a)Pressure, Young’s modulus, stress
b)Emf, potential difference, electric potential
c)Heat, work done, energy
d)Dipole moment, electric flux, electric field
Ans.
a)Pressure, Young’s modulus, stress
b)Emf, potential difference, electric potential
c)Heat, work done, energy
d)Dipole moment, electric flux, electric field
Ans.
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