In the following question, out of four words given below, three are alike in some manner and the fourth word is different. Find the different one.
விடையைக் காட்டு & விளக்கம்
விடை: (C) STETHOSCOPE
Microscope, telescope and periscope are optical instruments for seeing; the stethoscope is for hearing.
- (A) தவறு
Wrong: a microscope is an instrument for seeing (magnifying small objects).
- (B) தவறு
Wrong: a telescope is an instrument for seeing distant objects.
- (C) சரி
Correct: a stethoscope is used for hearing body sounds; the other three are used for seeing.
- (D) தவறு
Wrong: a periscope is an instrument for seeing over or around obstacles.