Who invented bluetooth?
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The organiser of the India Mobile Congress?
What is the technology used in a compact disc?
Which type of electromagnetic radiation has the longest wavelength?
An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?
Workers in leather tanning industries tend to suffer from
In terms of size, Saturn ranks no. ___ in our Solar System.
The length of a chord which is at a distance of 5cm from the centre of a circle of radius 13cm is