A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...? Mcqs

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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The period of revolution of a geostationary satellite is...?

(A) 365 days
(B) 30 days

(C) 24 hours
(D) changing continuously

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A Rhinoscope (or Nasoscope) is a thin, tube-like instrument used to examine the inside of the_____...?

(A) Eyes
(B) Nose

(C) Ears
(D) Brains

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Resistance of a conductor does not depend on _______...?

(A) Length of the conductor
(B) Area of crossection

(C) Density
(D) Resistivity

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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A region in a longitudinal wave where the particles are closest together is called...?

(A) Rarefaction
(B) Compression

(C) Crest
(D) Trough

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The average length of the kidney of a man is about...?

(A) 7cm to 8cm
(B) 8cm to 10 cm

(C) 10cm to 13 cm
(D) 13cm to 16cm

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Which are the secondary consumers and eat primary consumers (birds and mouse)...?

(A) Herbivores
(B) Carnivores

(C) Omnivores
(D) None

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In the medical system of treatment to relieve pains, called Acupuncture...?

(A) Drugs are used
(B) Herbs are used

(C) Electric shocks are applied
(D) Fine needles are pricked in the body

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The side view mirrors of vehicles are of which type of mirrors...?

(A) Convex
(B) Concave

(C) Plane
(D) Inverted

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