Question
Event (A): Scientists have discovered the oldest orchid
fossil trapped in amber that dates back some 45 million years to 55 million years Event (B): The finding shatters the previous record for an orchid fossil found in Dominican amber about 20-30 million years old. Given below are pairs of events A and B. You have to read both the events A and B and decide their nature of relationship. You have to assume that the information given in A and B is true and you will not assume anything beyond the given information while deciding the answer. Mark answer.Solution
Both these statements have no cause and effect relationship.
Charges +q and –q are placed at (–d, 0) and (+d, 0). A third charge Q is placed at (0, x). For what value of x will the force on Q be maximum?
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
A device used for converting A.C. into D.C. is called –
The intensity of any wave is proportional to which quantity?
Which of the following statements is true for a conductor in an electric field?
What is the unit of electric current? Â
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In order to investigate the internal atomic structure of crystals, we make use of:
Which of the following is a reason for excessive current in electrical circuits?
I. Direct touching of wires
II. Connection of many d...
A particle moves along the x-axis such that its velocity varies with position as
v(x) = k√(a2 – x2)
where k...