Question
A plane mirror is placed on a wall. A man walks directly
toward the mirror at 2 m/s. The speed at which his image approaches him is:Solution
In plane mirrors, the image appears the same distance behind the mirror as the object is in front. When the man moves at 2 m/s toward the mirror, the image moves 2 m/s toward him from the opposite side. So, the relative speed between man and image is 2 + 2 = 4 m/s.
Fill in the blanks using the correct tense of the verbs given in brackets and choose the right answer from among the options given below them.
The building that we came across while travelling today was ___________.
 (A) cracked                       (B)ruined�...
- Select the most appropriate homophone to fill in the blank.
She decided to ________ a letter to her friend after the long vacation.
... One female cat was injured in a trap set by poachers and now has a permanent …………….. that makes it ………….. for her to go back to the wi...
The following statements have two blanks which are to be filled in with options given below. Choose the correct combination of words in the same order ...
The continuous cycling of water among _______ three forms _________ the total amount of water on the earth constant even when the whole world is using it.
The courier boy informed that he will __________ the parcel by evening.
 (A) Convey                       (B) remit �...
The Space Force ______________two successful verification flights before allowing the Vulcan rocket ____________national security payloads.
It is possible to plug into remote databases to ____________ information.
Which conjunction can be used for this sentence?
You can stay out with friends as much as you want ___________ your mother agrees to it.
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