Physics - Mock Test 52

Question 511

Which of the following Scientist proved that the path of each planet around the Sun is elliptical?

A) Galileo B) Newton C) Copernicus D) kepler

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Question 512

The phenomenon which causes mirage is?

A) Total internal reflection B) Diffraction C) Polarisation D) Interference

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Question 513

Unit of impedance is _______?

A) ohm B) henry C) tesla D) hertz

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Question 514

The best material for the core of a transformer is?

A) stainless steel B) mild steel C) hard steel D) soft lron

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Question 515

Natural radioactivity was discovered by ______.?

A) Marie Curie B) Ernest Rutherfor C) Henri Becquerel D) Enrico Fermi

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Question 516

Good resistance coils are made of _____?

A) Copper B) Manganin C) Gold D) Silver

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Question 517

Wind rose represents?

A) wind turbulence B) wind data C) wind pressure D) wind temperature

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Question 518

What is the distance from the centre of the earth to the centre of the moon called?

A) Orbital length of the moon B) Orbital length of the earth C) Orbital radius of the moon D) Orbital radius of the earth

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Question 519

The primary colours in photography are?

A) Red, Blue, Yellow B) Red, Yellow, Green C) Red, Blue, Green D) Blue, Yellow, Green

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Question 520

Which of the following is not a vector quantity?

A) Acceleration B) Electric current C) Force D) Velocity

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