1
AP EAPCET 2025 - 21st May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the equation $\frac{d y}{d x}+\frac{1}{x} y=\frac{1}{x} e^x$

A

$y=x e^x+c$

B

$y=x e^x+c e^{-x}$

C

$y=\frac{e^x+c}{x}$

D

$y=\frac{e^{-x}+c x}{x}$

2
AP EAPCET 2025 - 21st May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the differential equation

$$ \left(x \sin \frac{y}{x}\right) d y=\left(y \sin \frac{y}{x}-x\right) d x $$

A

$\log x+\tan \frac{y}{x}=C$

B

$\log x+\cos \frac{y}{x}=C$

C

$\log x-\sin \frac{y}{x}=C$

D

$\log x-\cos \frac{y}{x}=C$

3
AP EAPCET 2025 - 21st May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Among the following, the physical quantity having the dimensions of Young's modulus is

A

strain

B

gravitational potential

C

surface energy

D

energy density

4
AP EAPCET 2025 - 21st May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If a car travels $40 \%$ of the total distance with a speed $v_1$ and the remaining distance with a speed $v_2$, then average speed of the car is

A

$\frac{1}{2} \sqrt{v_1 v_2}$

B

$\frac{v_1+v_2}{2}$

C

$\frac{2 v_1 v_2}{v_1+v_2}$

D

$\frac{5 v_1 v_2}{3 v_1+2 v_2}$