Calculate the centripetal acceleration of a particle moving in a circle of radius \(5\,m\) with a velocity of \(20\,m/s\).

• (A) \(80 \,m/s^2\)
• (B) \(40 \,m/s^2\)
• (C) \(100 \,m/s^2\)
• (D) \(160 \,m/s^2\)

What is the working principle behind signal transmission in an optical fiber?

• (A) Refraction
• (B) Diffraction
• (C) Total Internal Reflection
• (D) Interference

Find the equivalent resistance of three resistors of \(6\,\Omega\) each connected in parallel.

• (A) \(6\,\Omega\)
• (B) \(3\,\Omega\)
• (C) \(2\,\Omega\)
• (D) \(1\,\Omega\)

According to Curie’s Law, what happens to magnetic susceptibility if absolute temperature is doubled?

• (A) It doubles
• (B) It is halved
• (C) It remains constant
• (D) It becomes zero

Which series of the Hydrogen spectrum lies in the visible region?

• (A) Lyman Series
• (B) Balmer Series
• (C) Paschen Series
• (D) Brackett Series

Arrange carbocations in increasing order of stability.

• (A) Tertiary \(<\) Secondary \(<\) Primary
• (B) Primary \(<\) Secondary \(<\) Tertiary
• (C) Secondary \(<\) Primary \(<\) Tertiary
• (D) Primary \(<\) Tertiary \(<\) Secondary

What is the oxidation state of Phosphorus in \(H_3PO_4\)?

• (A) \(+3\)
• (B) \(+5\)
• (C) \(+1\)
• (D) \(-3\)

What color is produced when Phenol reacts with neutral Ferric Chloride?

• (A) Blue
• (B) Violet
• (C) Green
• (D) Yellow

Calculate the pH of a \(0.001\,M\) solution of \(HNO_3\).

• (A) \(1\)
• (B) \(2\)
• (C) \(3\)
• (D) \(4\)

What are the monomers of Buna-S?

• (A) Ethene and Styrene
• (B) 1,3-Butadiene and Styrene
• (C) Isoprene and Styrene
• (D) Butadiene and Vinyl Chloride

Which plant hormone promotes apical dominance?

• (A) Gibberellin
• (B) Cytokinin
• (C) Auxin
• (D) Ethylene

Name the antibody most abundant in human colostrum.

• (A) IgG
• (B) IgM
• (C) IgA
• (D) IgE

What is the phenotypic ratio of a Mendelian dihybrid cross in F\(_2\)?

• (A) \(3:1\)
• (B) \(1:2:1\)
• (C) \(9:3:3:1\)
• (D) \(1:1:1:1\)

Which enzyme acts as “molecular glue” to join DNA fragments?

• (A) DNA Polymerase
• (B) DNA Ligase
• (C) Helicase
• (D) Restriction Endonuclease

In which ecological interaction is one species harmed while the other is unaffected?

• (A) Mutualism
• (B) Parasitism
• (C) Commensalism
• (D) Amensalism