KEAM 2026 Pharmacy April 18 Question Paper: Download Answer Key with Solutions PDF : Available Here

The dimension of mutual inductance is (Denote dimension of current as A)

• (A) \( ML^2 T^2 A^{-2} \)
• (B) \( ML^2 T^{-2} A^{-2} \)
• (C) \( ML^{-2} T^2 A^{-2} \)
• (D) \( ML^2 T^{-3} A^{-3} \)
• (E) \( ML^2 T^{-3} A^{-2} \)

A pure inductor of inductance \( 0.1 \, H \) is connected to an AC source (of rms voltage 220 V and angular frequency 300 Hz). The rms current is

• (A) \( \frac{3}{22} \, A \)
• (B) \( \frac{22}{3} \, A \)
• (C) \( \frac{11}{150} \, A \)
• (D) \( \frac{150}{11} \, A \)
• (E) \( \frac{22}{6\pi} \, A \)

An object having a velocity of 5 m/s is accelerated at the rate 2 m/s\(^2\) for 6s. Find the distance travelled during the period of acceleration.

• (A) 60 m
• (B) 25 m
• (C) 36 m
• (D) 66 m
• (E) 45 m

A vehicle moving at 36 km/hr is to be stopped by applying brakes in the next 5 m. If the vehicle weighs 2000 kg, determine the average force that must be applied on it.

• (A) \( 10^4 \, N \)
• (B) \( 2 \times 10^4 \, N \)
• (C) \( 3 \times 10^4 \, N \)
• (D) \( 5 \times 10^3 \, N \)
• (E) \( 10^3 \, N \)

Two masses connected in series with two massless strings are hanging from a support as shown in the figure. Find the tension in the upper string.

• (A) \( m_1 g \)
• (B) \( (m_1 - m_2) g \)
• (C) \( m_2 g \)
• (D) \( (m_1 + m_2) g \)
• (E) \( (m_1 \times m_2) g \)

The elemental analysis of an organic compound gave:
C: 38.71%, H: 9.67%, O: 51.67%.
What is the empirical formula of the compound?

• (A) \( CH_2O \)
• (B) \( CH_3O \)
• (C) \( CH_4O \)
• (D) \( CHO \)
• (E) \( CH_5O \)

Which of the following statement is incorrect about Bohr's model of atom?

• (A) It fails to account for the finer details of the hydrogen atom spectrum.
• (B) Unable to explain the splitting of spectral lines in the presence of magnetic field.
• (C) The angular momentum of electron is quantised.
• (D) The ability of atoms to form molecule by chemical bonds.
• (E) Unable to explain the splitting of spectral lines in the presence of magnetic field.

The number of electrons in one mole of methane (CH\(_4\)) is:

• (A) \( 6.023 \times 10^{23} \)
• (B) \( 60.23 \times 10^{23} \)
• (C) \( 0.6023 \times 10^{23} \)
• (D) \( 602.3 \times 10^{23} \)
• (E) \( 6023 \times 10^{23} \)

No two electrons in an atom can have the same set of quantum numbers. This is known as:

• (A) Hund's rule
• (B) Pauli's exclusion principle
• (C) Aufbau principle
• (D) Heisenberg's principle
• (E) Fajan's rule

Uncertainty principle is valid for:

• (A) Proton
• (B) Methane
• (C) Both (A) and (B)
• (D) \( 1 \, \mu m \) sized platinum particles
• (E) \( 1 \, \mu m \) sized NaCl particles

Which of the following has the least atomic radius?

• (A) B
• (B) C
• (C) N
• (D) O
• (E) F

Which one of the following elements is represented as Eka-silicon in Mendeleev's periodic table?

• (A) Gallium
• (B) Germanium
• (C) Aluminium
• (D) Tin
• (E) Arsenic