FIITJEE JEE(Main) -2023 Test Solutions Physics, Chemistry & Mathematics
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Questions and Answers

How many questions are there in total on the JEE(Main) -2023 Test?

  • 30
  • 120
  • 60
  • 90 (correct)

    • What is the maximum marks for the JEE(Main) -2023 Test?

  • 400
  • 200
  • 300 (correct)
  • 100

    • How many sections are there in Part-A (Physics) of the test paper?

  • 4
  • 3
  • 5
  • 2 (correct)

    • What is the penalty for a wrong answer in Section-A of the test?

    <p>-1 mark</p> Signup and view all the answers

    How many Numerical based questions are there in Section-B of the test?

    <p>10</p> Signup and view all the answers

    Where is the FIITJEE House located?

    <p>All of the above</p> Signup and view all the answers

    What is the value of x, if the time period of a simple pendulum on the earth’s surface becomes x T when taken to a height R above the earth’s surface?

    <p>4</p> Signup and view all the answers

    What is the average speed of a car that travels distance 'x' with speed v1 and the same distance 'x' with speed v2 in the same direction?

    <p>2v1v2 / (v1 + v2)</p> Signup and view all the answers

    What is the ratio of the density of an oxygen nucleus to a helium nucleus?

    <p>4 : 1</p> Signup and view all the answers

    If an electromagnetic wave is transporting energy in the negative z direction and the electric field of the wave is along the positive y direction at a certain point and time, what will be the direction of the magnetic field of the wave at that point and instant?

    <p>Positive direction of x</p> Signup and view all the answers

    What is the length of a uniform metallic wire that carries a current of 2A, when connected across a 3.4V battery, given its mass, density, and resistivity?

    <p>\(\lambda = 10m\)</p> Signup and view all the answers

    What is the magnetic intensity at the centre of a solenoid with 1200 turns, a glass tube 2m long, and 0.2m in diameter when a current of 2A flows through it?

    <p>\(2.4 \times 10^3 A m^{-1}\)</p> Signup and view all the answers

    If an electron beam used in an electron microscope, when accelerated by a voltage of 20kV, has a deBroglie wavelength of \(\lambda_0\), what would be the de-Broglie wavelength associated with the electron beam if the voltage is increased to 40kV?

    <p>\(9 \lambda_0\)</p> Signup and view all the answers

    In Young’s double slits experiment, if the position of the 5th bright fringe from the central maximum is 5 cm, with a distance between slits and screen being 1m and wavelength of used monochromatic light being 600nm, what is the separation between the slits?

    <p>\(60 \mu m\)</p> Signup and view all the answers

    What is the root mean square velocity of molecules of gas?

    <p>(Proportional to square of temperature (T^2))</p> Signup and view all the answers

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