Question Library

- Aluminium can be made in thin sheet like Gold. - the leaf is a thin material that can be diverged easily.

- I is the elastic limit - the end of the constant part J is the yield point - L is the break point.

E = F m = GMm/d\(^2\) m = GM d\(^2\) E = 6.7 \times 10\(^{-11}\) \times 6 \times 10\(^{24}\) (6.4 \times 10\(^6\))\(^2\) = 9.8N kg E = g = 9.8N/kg

- retina is similar to film - pupil is similar to aperture - iris is similar to diaphragm

- the positive pole is lead peroxide (PbO\(_2\)) - the negative pole is head - the electrolyte is H\(_2\)SO\(_4\)

Boiling indicates changes from Liquid to gas.

It was discovered by James Chadwick in 1932.

-yield point is where a small increase in load produces a large extention.

R = th = 2cm, d = 0.67cm n = R A = R R.d = 2 2-0.67 = 1.52

\(\text{Circumference} \, (d) = 2 \pi r = 2 \pi (0.1) \approx 0.6283 \, \text{m}\) \(\text{Time for one revolution} \, (t) = 60 \, \text{s}\) \(\text{Speed} \, (v) = \frac{d}{t} = \frac{0.6283}{60} \approx 0.01047 \, \text{m/s} \approx 1.05 \times 10^{-2} \, \text{ms}^{-1}\)

For the parallel arrangement = 2 + 4 = 6\muf For the series arrangement = 1 C\(_T\) = 1 2 + 1 3 + 1 6 + 1 4 1 C\(_T\) = 15 12 C\(_T\) = 12 15 = 0.8\muf

- Topping is done with distilled water - Naked flame should be avoided when charging the battery - Direct connection of wires to the terminals should be avoided.

The volume of object is the same as the volume of liquid displaced in a container such as measuring cylinder.

From two parts 20m apart a = 10m, x = 6m, A = 5 V = \omega\(\sqrt{A^2 - X^2}\) = 5\(\sqrt{10^2 - 6^2}\) = 40m/s

Meter rule has a reading accuracy of 0.5mm or 0.05cm, thus measurement is M \pm 0.05cm i.e 2.00, 2.05, 2.50, 2.55 etc. The reading that cannot be read is 2.56cm.