Question
Which electromagnetic wave has the longest
wavelength?Solution
In the electromagnetic spectrum, wavelength increases from gamma rays → X-rays → ultraviolet → visible light → infrared → microwaves → radio waves. Radio waves have the longest wavelength.
Raju invests a certain amount at an annual simple interest rate of 6% for 2 years. The total amount he receives after this period is then reinvested at ...
Rs. (n + 500) invested on simple interest amounts to Rs. 4,500 and Rs. 5,100 in 5 years and 6 years, respectively. Find the value of 'n'.
What will be the net CI on Rs. 8000 for 4 years at 20% p.a compounded annually?
A invests a sum at 8% simple interest. After 5 years the amount becomes 1.4 times the principal. Find the rate of interest used.
Suman paid ₹9,600 in interest on a loan she obtained 5 years ago with a simple interest rate of 16%. What was the amount of the loan she had taken?
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A man deposited Rs. 9000 at 10% compound interest, compounded annually while Rs. 8500 at 13% simple interest per annum. What will be the difference betw...
Abhishek allocates Rs.1600 each into two different investment schemes, A and B. Scheme A provides simple interest annually at a rate of (R-2)%, while sc...
The amount of a certain sum in 3 years at simple interest at x % p.a. is ₹5,472 and the amount of the same sum in 7(1/2) years at the same rate, at si...
A man deposited Rs. 8500 in a bank offering compound interest of 20% p.a. compounded annually for first 2.5 years and after that simple interest of 25% ...
