Question
The energy stored in a stretched spring
is:Solution
The potential energy stored in a stretched or compressed spring follows Hooke’s Law: U = 1/2 kx² Here, k is the spring constant and x is the displacement from the natural length. This energy is due to the work done in stretching or compressing the spring. So, correct expression is 1/2 kx².
Referring to a little girl, a woman says, "She is the daughter of my sister's sister's sister. How is the woman related to that little girl?
Four of the following five are somehow similar and therefore create a group. Which of these is not related to this group?
L, F, X, R, B
If the signs – and ÷ are interchanged, then which of the following equations would be correct?
If ÷ is interchanged with − and × is interchanged with +, then which of the following expressions is correct?
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performed ...
Select the name from the options that is similar to the given set of names in a certain manner.
Bismillah Khan, JRD Tata, M Visvesvaraya, Sachin Tendulkar
What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘–’ are interchanged?<...
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are ...
Select the option figure which is embedded in the given figure (rotation is NOT allowed).
Eight persons namely - Harsh, Khushi, Jay, Rohan, Ashwin, Palak, Jayesh and Nilamber live on separate floors of an eight-floor building in an apartment....
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