Question : The antiparticle of an electron is

Option 1: Positron

Option 2: Proton

Option 3: Alpha particles

Option 4: Beta particles

Question : Which one of the following has greatest mass?

Option 1: electron

Option 2: proton

Option 3: neutron

Option 4: hydrogen nucleus

Question : Direction: Which one of the given responses would be a meaningful order of the following?

1. Absorption

2. Digestion

3. Nutrition

4. Excretion

Option 1: 3, 1, 2, 4

Option 2: 2, 1, 3, 4

Option 3: 3, 4, 2, 1

Option 4: 3, 2, 1, 4

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$\frac{1}{2}, \frac{3}{4}, ?, \frac{5}{4}$

Option 1: 1

Option 2: $\frac{1}{4}$

Option 3: $\frac{3}{4}$

Option 4: $\frac{2}{3}$

Question : As per physicists and their major contributions/discoveries, which of the following pairs is incorrect?

Option 1: John Bardeen - Theory of superconductivity

Option 2: Louis Victor de Broglie - Wave nature of matter

Option 3: Victor Francis Hess - Cosmic radiation

Option 4: Paul Dirac - Liquid helium