- [Easy]Which of the following physical quantities does NOT have the dimensional formula [M⁰L⁰T⁻¹]?...
- [Easy]The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is the total mass...
- [Medium]The dimension of the quantity (1/2)ε₀E² (where ε₀ is the permittivity of free space and E is the electric field) is the same as that of:...
- [Easy]The parallax of a celestial object is 0.5 arc seconds. What is the distance to this object in parsecs?...
- [Medium]Using dimensional analysis, determine which of the following cannot be the formula for the time period T of a simple pendulum (where l is length, g is...
- [Hard]In a vernier caliper, 1 cm on the main scale is divided into 20 equal parts. If 25 divisions on the vernier scale coincide with 24 divisions on the ma...
- [Medium]The equation of state for a real gas is (P + a/V²)(V - b) = RT, where a and b are constants. The dimensions of 'a' are:...
- [Medium]One astronomical unit (AU) is approximately 1.496 × 10⁸ km. If the distance from Earth to a star is 4.22 light years, what is this distance in astrono...
- [Medium]The period of oscillation of a simple pendulum is T = 2π√(L/g). If the error in measurement of L is 2% and that in g is 3%, what is the percentage err...
- [Easy]The distance between the Sun and Earth is approximately 1.5 × 10¹± m. What is its order of magnitude?...