M Dash Foundation: C Cube Learning

Category: Methods

  • A Question a day, Q4 (series)

    Question: Liliana has a bag of marbles. The bag contains 18 black, 15 red, 11 blue, and 8 white marbles. Liliana randomly takes a red marble from the bag and leaves the marble on a table. What is the probability that she will next take a red or a white marble from the bag?

  • A Question a Day (series) Q3

    The equation v = a*del_t is sometimes used to find velocity when acceleration and time are known. Another form of this equation is v = v_0 + a*del_t. In this second form of the equation, the function of the term v_0 is to: A. indicate that the equation is valid only for an object that…

  • A Question a Day (series) Q2

    1. A ball is thrown with an initial velocity of 20 m/s at an angle of 30° above the horizontal. What is the instantaneous vertical velocity of the ball when it is 5.1 m above the release point? (g = 9.8 m/s^2) A. 0.2 m/s B. 6.6 m/s C. 10 m/s D. 17 m/s

  • Physics Class Test, XII {PU/ISc/ICSE/CBSE}

    A. What’s the speed of an electron in a cathode ray tube if the electric field and magnetic field are of unit strength in SI unit? Calculate magnetic force experienced by the electron. 4 marks B. Derive the formula for magnetic field produced by an infinitely long straight conductor. 4 marks

  • Physics Midterm for ISc-II (ICSE) [also good for CBSE/PU-II]

    (c) Fission of U – 235 nucleus releases 200 MeV of energy. Calculate the fission rate (i.e. no. of fissions per second) in order to produce a power of 320 MW. Q 10: (a) What’s the ratio of the shortest wavelength of Balmer series to the shortest wavelength of the Lyman series? (b) What are…