• A. $\frac{hf}{c^2}$
• B. $\frac{hf}{c}$
• C. $hfc$
• D. $hf{c}^2$

Answer: Option B

Explanation:

• A. $3g$
• B. $\frac{1}{3}g$
• C. $\frac{1}{9}g$
• D. $\frac{1}{6}g$

Answer: Option B

Explanation:

• A. $7.8\times {10}^5 N{m}^{-2}$
• B. $7.8\times {10}^6 N{m}^{-2}$
• C. $9.8\times {10}^5 N{m}^{-2}$
• D. $9.8\times {10}^6 N{m}^{-2}$

Answer: Option B

Explanation:

• A. $\frac{w}{4}$
• B. $\frac{w}{2}$
• C. W
• D. 2W

Answer: Option C

Explanation:

• A. 3T
• B. $\frac{T}{3}$
• C. T
• D. $\frac{T}{\sqrt{3}}$

Answer: Option C

Explanation:

• A. $\frac{L^2}{mr}$
• B. $\frac{L^{2}m}{r}$
• C. $\frac{L^2}{m{r}^3}$
• D. $\frac{L^2}{m{r}^2}$

Answer: Option C

Explanation:

• A. $P = \frac{3}{2}EV$
• B. $V = \frac{2}{3}EP$
• C. $PV = \frac{3}{2}E$
• D. $PV = \frac{2}{3}E$

Answer: Option D

Explanation:

• A. 1µF, 8µF
• B. 5µF, 4µF
• C. 6µF, 3µF
• D. 2µF, 7µF

Answer: Option C

Explanation:

• A. $12c{m}^2$
• B. $24 c{m}^2$
• C. $8c{m}^2$
• D. কোনটিই নয় (none)

Answer: Option D

Explanation:

• A. (25,5)
• B. (25,4)
• C. (25,3)
• D. (25,2)

Answer: Option A

Explanation:

• A. $ML{T}^{-1}$
• B. $L{T}^{-1}$
• C. $L{T}^{-2}$
• D. $T^{-1}$

Answer: Option D

Explanation:

• A. $\underset{E}{\to }$
• B. $\underset{B}{\to }$
• C. $\underset{E}{\to }\times \underset{B}{\to }$
• D. $\underset{E}{\to }.\underset{B}{\to }$

Answer: Option C

Explanation:

• A. $F\times L$
• B. $\frac{F\times L}{2}$
• C. $\frac{F\times l}{2}$
• D. $\frac{F\times l}{2A}$

Answer: Option C

Explanation:

• A. $1 m{s}^{-1}$
• B. $10 m{s}^{-1}$
• C. $50 m{s}^{-1}$
• D. $0.5 m{s}^{-1}$

Answer: Option A

Explanation:

• A. $\mathrm{\pi }\times {10}^{-4}\mathrm{Tesla}$
• B. $2\mathrm{\pi }\times {10}^{-5}\mathrm{Tesla}$
• C. $5\times {10}^{-5}\mathrm{Tesla}$
• D. $8\mathrm{\pi }\times {10}^{-5}\mathrm{Tesla}$

Answer: Option D

Explanation: