If the value of universal gravitational constant in SI is 6.610^-11Nm^-2kg^-2, then find its value in CGS System?

Obtain an expression for the time period T of a simple pendulum. The time period T depend upon
(i) mass 'm' of the bob
(ii) length 'l' of the pendulum and
(iii) acceleration due to gravity g at the place where the pendulum is suspended. (Constant k = 2π) i.e

Two resistors of resistances R₁= 150 ± 2 Ohm and R₂ = 220 ± 6 Ohm are connected in parallel combination. Calculate the equivalent resistance.
Hint:\(\frac{1}{R'}=\frac{1}{R_1}+\frac{1}{R_2}\)

Using a Vernier Callipers, the length of a cylinder in different measurements is found to be 2.36 cm, 2.27 cm, 2.26 cm, 2.28 cm, 2.31 cm, 2.28 cm and 2.29 cm. Find the mean value, absolute error, the relative error and the percentage error of the cylinder.

The shadow of a pole standing on a level ground is found to be 45 m longer when the sun's altitude is 30^o than when it was 60^o. Determine the height of the pole. [Given \(\sqrt { 3 } \)=1.73]