Questions

Which one of the following is not a property of electromagnetic waves?

Device used for the detection and measurement of all types of radiation (alpha, beta and gamma)

One step in the production of hydroelectric power involves _____.

While releasing the arrow from a stretched bow, the PE of the bow is converted into?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

work extremely hard or incessantly.

In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.

The Principal promised the boys a holiday.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

_____________ who argue in this way support their case by pointing to the lack of a general consensus of opinion which obtains in many parts of the field which the philosopher regards as his own; and also by ____________ out that, even within this field, there is a growing tendency ___________ the part of certain sciences to separate themselves from philosophy and _____________ independent. Thus the psychologist and the logician are sometimes very anxious to have it understood that they belong among the scientists and ___________ among the philosophers.

own; and also by ____________ out that, even within this field.

The side BC of the ΔABC is extended to the point D. If ∠ ACD = 112° and ∠B = 3/4 ∠A, then the value of ∠B is