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Mdcat-past-papers Quiz

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4461. After 3 half-lives, the remaining fraction of a radioactive sample is:



4462. If the horizontal range of a projectile becomes half of its maximum possible horizontal range, the probable angle of projection is:



4463. In an ideal transformer, if the primary voltage is doubled and the turns ratio remains the same, what happens to the secondary current?



4464. An angular displacement of 90° is equal to:



4465. The time in which half of the given number of radioactive nuclei decay is known as :



4466. Earth receives large amount of energy directly from:



4467. A phase difference of 90° is equal to:



4468. The reciprocal of the resistivity of a material is called its:



4469. The Balmer series of hydrogen spectrum appears in :



4470. A ball is thrown into the air with certain velocity v making an angle θ with horizontal. If air resistance is neglected, then at maximum height its velocity is:



4471. A canon is placed on a smooth surface. When it fires a shell, the canon moves backward, this recoil occurs due to:



4472. If the surface charge density of an infinite sheet increases by 25%, the electric field intensity:



4473. An incompressible fluid flows through a pipe that becomes narrower in one section. The fluid speed increases in that region to maintain:



4474. In a pipe of varying cross-section as fluid enters the narrower region, it exhibits:



4475. The curved shape of an airplane wing causes air to move faster over the top surface. This leads to:



4476. The protons in the nucleus of an atom DO NOT exit due to :



4477. Mechanical waves cannot travel through outer space because they:



4478. Terminal voltage of a cell equals its EMF only when :



4479. A loop moves toward a stationary magnetic line induced current will:



4480. The energy of a Simple Harmonic oscillation depends upon the :