Physics MCQ

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Physics Quick Quiz

Question 1 of 10
  • What is the approximate value of maximum forward voltage for the visible-light LED?

    Answer & Explanation

    Correct Answer: 1.8 v

    Note: This Question is unanswered, help us to find answer for this one

  • When we say charge is conserved, we mainly mean that charge can be _________.

    Answer & Explanation

    Correct Answer: Transferred without loss like money in a bank.

    Note: This Question is unanswered, help us to find answer for this one

  • The angular size of the smallest features that a telescope can see is called the angular ________.

    Answer & Explanation

    Correct Answer: Resolution

    Note: This Question is unanswered, help us to find answer for this one

  • Lisa is sitting in a parked car. She noticed Ryan approaching towards the car in the side view mirror of R = 2m. How fast the image of Ryan appears to move when he is 39m away? Note: It is given that Ryan is moving at a speed of 5 m/s.

    Answer & Explanation

    Correct Answer: 1/280 m/s

    Note: This Question is unanswered, help us to find answer for this one

  • In accordance with the classical electromagnetic theory, what is the approximate initial frequency of the light emitted by the electron revolving around a proton in hydrogen atom?

    Answer & Explanation

    Correct Answer: 6.6 x1015 Hz.

    Note: This Question is unanswered, help us to find answer for this one

  • What is the correct wavelength range of the visible light?

    Answer & Explanation

    Correct Answer: 4000 A - 8000 A

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  • Which of the following options could be the lowest temperature of mesosphere?

    Answer & Explanation

    Correct Answer: -120° C

    Note: This Question is unanswered, help us to find answer for this one

  • Fast-moving currents of air that occur above the friction layer are called _____.

    Answer & Explanation

    Correct Answer: Jet streams

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  • If the mass of a vehicle is 1800 kg, then what is the work required to be done for increasing the velocity of the vehicle from 60 km/h to 120 km/h?

    Answer & Explanation

    Correct Answer: 749700 J

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  • _____ is the property of increasing pitch that accompanies increases in the tones frequency.

    Answer & Explanation

    Correct Answer: Tone height

    Note: This Question is unanswered, help us to find answer for this one

  • Physics Quick Quiz

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