1. 2470 \(\Omega\)
2. 2320 \(\Omega\)
3. 2180 \(\Omega\)
4. 2210 \(\Omega\)
A thin bar magnet of length \(2L\) is bent at the mid-point so that the angle between them is \(60^\circ\). The new length of the magnet is:
1. \(
\frac{\mathrm{L}}{2 \sqrt{3}}
\)
2. \( \frac{\sqrt{3} \mathrm{~L}}{2}
\)
3. \(\mathrm{~L}
\)
4. \(\frac{2 \mathrm{~L}}{3}\)
1. 0.7 V
2. 1.2 V
3. 0.8 V
4. 0.9 V
Given that the reduced temperature, the reduced pressure,
the reduced volume,
Thus, it can be said that the reduced equation of state may be given as:
1.
2.
3.
4.
1. 8.57 L
2. 2.14L
3. 1.28 L
4. 7.51 L
1. Potassium salt has preservative action
2. Potassium metabisulphite prevents oxidation
3. Potassium metabisulphite is not influenced by acid
4. Sulphur dioxide and sulphurous acid formed kill bacteria and germs
1. 319.4 m and X-rays
2. 319.4 m and radio wave
3. 219.3 m and microwave
4. 219.3 m and radio wave