Question
A company invests in different assets simultaneously in
order to reduce risks. What is this strategy called?Solution
This strategy is called diversification. Diversification helps prevent the risk of investing into a single asset whose price can fluctuate and be unpredictable. By spreading out the investment into various assets, the risk from fluctuations of one single asset can be reduced.
What is inertia?
The frequency of ultrasonic waves is:
A non-conducting sphere of radius R has a radially varying charge density ρ(r) = k•r. Find the electric field at a distance r < R.
During which type of motion does an object along a straight line have zero change in velocity for any time interval?
Two charges, +3 µC and –3 µC, are placed 1 m apart in vacuum. What is the electrostatic potential energy of the system?
What is the principle behind the working of a transformer?
A body of mass 3 kg has a velocity of 4 m/s. Find its kinetic energy.
A sound wave has a frequency of 500 Hz and wavelength of 0.68 m. What is the speed of sound?
Two tuning forks produce 4 beats per second. If one has a frequency of 256 Hz, the frequency of the other is:
A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding?
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