MCQs

Q271: The maximum mass of an atom is concentrated in _____?

• A) Electron
• B) Proton
• C) Nucleus

Q272: The reaction in which an acid and a base react to form salt and water only is known as _______ reaction.

• A) Neutralization
• B) Ionization
• C) Oxidation

Q273: A voltmeter is always connected in a circuit in ____?

• A) Series
• B) Parallel
• C) Both A and B

Q274: All electromagnetic waves travel through a vacuum at ______?

• A) The different speed
• B) The same speed
• C) The increasing speed

Q275: The heat from Sun reaches to earth in form of waves called _____?

• A) Conduction
• B) Radiation
• C) Convection

Q276: The characteristic of sound by which we can differentiate between shrill and grave sound is _____?

• A) Loudness
• B) Tone
• C) Pitch

Q277: Volvox is a polyphyletic genus of _______?

• A) Green algae
• B) Red algae
• C) Brown algae

Q278: Scientific name of frog is ____?

• A) Palaeon
• B) Rana tigrina
• C) Periplaneta

Q279: First time cell was discovered in which year?

• A) 1965
• B) 1791
• C) 1665

Q280: The angle of incidence of a ray for which the ang

• A) Refracted Angle
• B) Critical Angle
• C) Incident Angel