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Science MCQ Questions with answers

Here Important Science MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Science MCQs [Page 3 ]

Vikash Gupta • 13.62K Points
Tutor II

Q) A convex lens and concave lens each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power (in dioptres) of the combination is :

(A) 25

(B) Zero

(D) 50

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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) The magnetic moment has dimension of :

(A) [L²A]

(B) [LA]

(D) [LT-1A]

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) Which of the following shows that the Earth behaves as a magnet ?

(A) Repulsion between like poles

(B) Null points in the magnetic field of a bar magnet

(D) No existence of isolated magnetic poles

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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) In the Davisson – Germer experiment if the incident beam consists of electrons, then the diffracted beam consists of :

(A) Protons

(B) Electrons

(D) Neutrons

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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) Which of the following does not depict the correct link between technology and physics ?

(A) Nuclear reactor – nuclear fusion

(B) Electron microscope – wave nature of induction

(D) Optical fibers – total ternal reflection of light

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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) A small magnet of dipole moment M is kept on the arm of a deflection magnetometer sat in tan A position at a distance of 0.2 m. If the deflection is 60°, the value of M is (BH = 0.4 × 10-4 T)

(A) Zero

(B) 0.77 Am²

(D) None

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Correct Answer - Option (B)

Explanation:
the right answer is 2.77Am^2 .

Vikash Gupta • 13.62K Points
Tutor II

Q) A cyclotron is used to obtain a 2 meV beam of protons. The alternating potential difference applied between the dees has a peak value of 20 kV and its frequency is 5 MHz. The intensity of magnetic field to be applied for resonance will be:

(A) 0.0327 T

(B) 3.27 T

(D) None

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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

Vikash Gupta • 13.62K Points
Tutor II

Q) What determines the charge that flows through a circuit due to the inducted emf?

(A) The total change in magnetic flux

(B) The final magnetic flux

(D) The rate of change of magnetic flux

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

Praveen Singh • 16.61K Points
Tutor I

Q) Avalanche breakdown is due to :

(A) Collision of minority charge carrier

(B) DL thickness decrease

(D) None of the above

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

Praveen Singh • 16.61K Points
Tutor I

Q) In Fraunhofer diffraction the centre of diffraction image is :

(A) Always dark

(B) Bright for large wavelength and dark low for low wavelength

(D) Always bright

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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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Science MCQ Questions with answers

Learn Science MCQs [Page 3 ]

Q) A convex lens and concave lens each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power (in dioptres) of the combination is :

Q) The magnetic moment has dimension of :

Q) Which of the following shows that the Earth behaves as a magnet ?

Q) In the Davisson – Germer experiment if the incident beam consists of electrons, then the diffracted beam consists of :

Q) Which of the following does not depict the correct link between technology and physics ?

Q) A small magnet of dipole moment M is kept on the arm of a deflection magnetometer sat in tan A position at a distance of 0.2 m. If the deflection is 60°, the value of M is (BH = 0.4 × 10-4 T)

Q) A cyclotron is used to obtain a 2 meV beam of protons. The alternating potential difference applied between the dees has a peak value of 20 kV and its frequency is 5 MHz. The intensity of magnetic field to be applied for resonance will be:

Q) What determines the charge that flows through a circuit due to the inducted emf?

Q) Avalanche breakdown is due to :

Q) In Fraunhofer diffraction the centre of diffraction image is :

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Attempt 200+ Quizzes on Science

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Science MCQ Questions with answers

Learn Science MCQs [Page 3 ]

Q) A convex lens and concave lens each having the same focal length of 25 cm, are put in contact to form a combination of lenses. The power (in dioptres) of the combination is :

Q) The magnetic moment has dimension of :

Q) Which of the following shows that the Earth behaves as a magnet ?

Q) In the Davisson – Germer experiment if the incident beam consists of electrons, then the diffracted beam consists of :

Q) Which of the following does not depict the correct link between technology and physics ?

Q) A small magnet of dipole moment M is kept on the arm of a deflection magnetometer sat in tan A position at a distance of 0.2 m. If the deflection is 60°, the value of M is (BH = 0.4 × 10-4 T)

Q) A cyclotron is used to obtain a 2 meV beam of protons. The alternating potential difference applied between the dees has a peak value of 20 kV and its frequency is 5 MHz. The intensity of magnetic field to be applied for resonance will be:

Q) What determines the charge that flows through a circuit due to the inducted emf?

Q) Avalanche breakdown is due to :

Q) In Fraunhofer diffraction the centre of diffraction image is :

Select Subject

Attempt 200+ Quizzes on Science

Choose Examination

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