1
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following compounds has highest boiling point?

A

$n-\mathrm{C}_4 \mathrm{H}_9 \mathrm{NH}_2$

B

$\left(\mathrm{C}_2 \mathrm{H}_5\right)_2 \mathrm{NH}$

C

$\mathrm{C}_2 \mathrm{H}_5 \mathrm{~N}\left(\mathrm{CH}_3\right)_2$

D

$\left(\mathrm{CH}_3\right)_3-\mathrm{C}-\mathrm{NH}_2$

2
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A physical quantity $\mathrm{P}=\frac{\mathrm{A}^3 \sqrt{\mathrm{~B}}}{\mathrm{C}^{-4} \mathrm{D}^{3 / 2}}$. Out of the quantities $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and D , the quantity which brings maximum percentage error in P is

A

A

B

B

C

C

D

C

3
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two coils having self-inductances $\mathrm{L}_1=75 \mathrm{mH}$ and $L_2=48 \mathrm{mH}$ are coupled with each other. If the mutual inductance of the coils is 37.2 mH , then coefficient of coupling will be

A

0.58

B

0.60

C

0.62

D

0.64

4
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

When a big drop of water is formed from n small drops of water, the energy loss is 4 E , where E is the energy of the bigger drop. If $R$ and $r$ is the radius of the bigger and the smaller drop respectively then number of smaller drops $n$ is

A

$\frac{5 R^2}{r^2}$

B

$\frac{2 R^2}{r}$

C

$\frac{5 R}{r}$

D

$\frac{5 R^2}{r}$