• A. ${}_1{}^{2}H$
• B. ${}_1{}^{3}H$
• C. ${}_2{}^{4}H$
• D. ${}_1{}^{1}H$

Answer: Option D

Explanation:

• A. $\frac{10}{7}m/s$
• B. $\frac{7}{10}m/s$
• C. $\frac{10}{3}m/s$
• D. $\frac{3}{10}m/s$

Answer: Option C

Explanation:

• 
• A. 2.5 A
• B. 10 A
• C. 2 A
• D. 0 A

Answer: Option C

Explanation:

• A. $0.2 kg/m^3$
• B. $0.1 kg/m^3$
• C. $0.02 kg/m^3$
• D. $0.5 kg/m^3$

Answer: Option A

Explanation:

• A. $0.026m{s}^{-1}$
• B. $0.26m{s}^{-1}$
• C. $2.6m{s}^{-1}$
• D. $3.6m{s}^{-1}$

Answer: Option A

Explanation:

• A. $16 rad s^{-2}$
• B. $28 rad s^{-2}$
• C. $20 rad s^{-2}$
• D. $12 rad s^{-2}$

Answer: Option C

Explanation:

• A. $A$
• B. $B$
• C. $A.B$
• D. $\overline{A}+B$

Answer: Option A

Explanation:

• A. $\underset{L}{\to }= \underset{r}{\to }\times \underset{p}{\to }$
• B. $\underset{L}{\to }= \underset{p}{\to }.\underset{r}{\to }$
• C. $\underset{L}{\to }= \underset{p}{\to }\times \underset{r}{\to }$
• D. $\underset{r}{\to }.\underset{p}{\to }$

Answer: Option A

Explanation:

• A. $\frac{d^{2}x}{d{y}^2}+{\omega }^{2}x=0$
• B. $\frac{d^{2}x}{d{y}^2}+{\omega }^{2}y=0$
• C. $\frac{d^{2}x}{d{t}^2}+{\omega }^{2}t=0$
• D. $\frac{d^{2}x}{d{t}^2}+{\varpi }^{2}x=0$

Answer: Option D

Explanation:

• A. $3.0 x {10}^{8}m/s$
• B. $2.67 x {10}^{5}m/s$
• C. $340 m/s$
• D. $0 m/s$

Answer: Option A

Explanation:

• A. $E=2{\mathrm{\pi }}^2{\mathrm{a}}^2\mathrm{fp}$
• B. $E=2{\mathrm{\pi }}^2{\mathrm{a}}^2{\mathrm{fp}}^2$
• C. $E=2{\mathrm{\pi }}^2{\mathrm{a}}^2{\mathrm{f}}^2\mathrm{p}$
• D. $E=2{\mathrm{\pi }}^2{\mathrm{a}}^2{\mathrm{f}}^2{\mathrm{p}}^2$

Answer: Option C

Explanation:

• A. $2:3$
• B. $1:\sqrt{3}$
• C. $\sqrt{2}:\sqrt{3}$
• D. $\sqrt{3}:\sqrt{2}$

Answer: Option A

Explanation:

• A. $0.5 N{m}^{-1}$
• B. $2 N{m}^{-1}$
• C. $50 N{m}^{-1}$
• D. $250 N{m}^{-1}$

Answer: Option C

Explanation:

• A. $\lambda =\frac{E}{F}$
• B. $\lambda =\frac{h}{p}$
• C. $\lambda =\frac{h}{m_{\circ }c}$
• D. $\lambda =\frac{p}{h}$

Answer: Option B

Explanation:

• A. $NM{C}^{-1}$
• B. $u{m}^{-1}$
• C. $Vm$
• D. $N{C}^{-1}$

Answer: Option B

Explanation: