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The manganese and chlorine ions activates enzymes involved in photosynthesis and nitrogen metabolism, especially in photolysis of water to release oxygen.
In an atom, which particles are responsible for chemical bonding?
What happens to resistance of a wire when its length is doubled (keeping area constant)?
A spherical black body with a radius of 8 cm radiates 450-watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated...
Frequency modulation (FM) changes:
The half-life of a radioactive substance is 5 hours. How much of the substance remains after 15 hours?
An object is placed 10 cm from a convex mirror of focal length 15 cm. Find the position of the image.
Specific resistance of a conductor increases with :
What is the formula for density?
A dipole with moment p = 2i + 3j - 4k is placed at A(2, −3, 1). Find the electric potential at point B(4, −1, 0) in volts. (Use 1/(4 π ε0) = 9 × ...
In a concave mirror which of the following pair of position of object – size of the image is correct?
I. At infinity – point sized
