1
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { The particular solution of the equation } \sin \left(\frac{d y}{d x}\right)=a \text {, where } a \in \mathbb{R} \text { and } y=2 \text { when } x=0 \text { is } $$

A

$$ \sin \left(\frac{y-2}{x}\right)=a $$

B

$$ \sin \left(\frac{x-2}{y}\right)=a $$

C

$$ \sin \left(\frac{y+2}{x}\right)=a $$

D

$$ \sin \left(\frac{x}{y-2}\right)=a $$

2
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \begin{aligned} &\text { Find the co-ordinates of the orthocentre of the triangle formed by the lines }\\ &\begin{aligned} & L_1: y-x=2 \\ & L_2: y+2 x=8 \\ & L_3: 3 y-x=18 \end{aligned} \end{aligned} $$

A
(2, 4)
B
$$ \left(\frac{22}{7}, \frac{43}{7}\right) $$
C

$$ \left(\frac{10}{7}, \frac{40}{7}\right) $$

D

(6, 8)

3
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

An atom has a single electron. Its ground state energy is -30 eV and its first excited state energy is -8 eV . The atom is bombarded with a stream of photons, each of energy 15 eV .

Assuming the atom being in the ground state, which of the following statements is correct?

A. Atom gets excited to the first excited state and later emit photons of 22 eV

B. Atom absorbs energy continuously until 22 eV is accumulated and then gets excited

C. Atom will not get excited, and the transmitted light will have the same frequency as the incident light

D. Atom will absorb the photon and re-emit a photon of lower energy

A

A

B

B

C

D

D

C

4
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Paramagnetic substances

A. Move from a region of strong magnetic field to weak magnetic field

B. Has susceptibility less than zero

C. Attract strongly towards external magnetic field

D. Align themselves along the directions of external magnetic field

A

B

B

D

C

C

D

A