Questions

This is NOT a use of a concave mirror?

What is the principal focus of a spherical mirror?

One should use porcelain and not metal containers in a microwave oven because..

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Can't judge a book by its cover

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.

Many a travelogue I read nowadays are about how the traveller went on a road less travelled ___________ some off-the-track trek or to an unknown destination or simply into the wild. How no internet ________________ is what you need to reconnect with yourself! How leaving your watch and phone __________ and going into the world of no check-ins and no updates would bring you solitude! These write-ups are laced with adjectives describing the geography of the region and filled with__________ details of the author’s days in that remote place. And, ironically, they all end with a strange advice to travel, and tell no one. I beg to _________.

and tell no one. I beg to _________.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option.If a sentence is free from error, select 'No Error'.

She kind (1)/ treated the (2)/ wounded street dog. (3)/ No error (4)

The Center for Medicare & Medicaid Services (CMS), a federal agency in USA has an Indian as its current administrator under the Trump regime. Who is she?

Least distance of distinct vision for normal eye is