💥Join UPSC 2027,2028 Mentorship (June Batch) + Access XFactor Notes & Microthemes PDF

Which one of the following does a TV remote control unit use to operate a TV set

Which one of the following does a TV remote control unit use to operate a TV set ?

(a)

Light waves

(b)

Sound waves

(c)

Micro waves

(d)

Radio waves

Answer:

Explanation