India: Science ...

What does the term Dolby B and Dolby C printed on the tape-recorders and other sound systems refer to?

Consider the following statements
1. Mobile WiMax is the third generation (3G) of mobile telecommunication systems.
2. LTE advanced is the fourth generation (4G) of mobile telecommunication.

Consider the following statements:
1. 4G service peak speed for low mobility communication such as pedestrians and stationary users is 100 Mbit/s.
2. 4G service peak speed for high mobility communication such as from trains and cars is 1 Gbit/s.
Which of the statements given above is/are correct?

Which one of the following countries firstly deployed the 4G system of mobile telecommunication in the world?

Consider the following statements:
1. 4G system provides mobile USB wireless ultra-broadband internet access to smartphones, and to other mobile devices.
2. 4G system is started deploying partially in Delhi and Maharashtra.
Which of the statements given above is/are correct?

From which one of the following GSM technologies, the LTE(Long Term Evolution) is made to the enhancement of telecommunication?

Consider the following statements:
1. Smart card is a plastic card with an embedded microchip.
2. Digital technology is primarily used with new physical communication medium such as satellite and fibre optics transmission.
3. A digital library is a collection of documents in an organised electronic form available on the internet only.
Which of the statements given above is/are correct?

Consider the following statements:
1. Bluetooth can be used in fax, telephones, Global Positioning System (GPS) receivers, and video game consoles.
2. Bluetooth is used as a wireless communication with PC input and output devices like mouse, keyboard and printer.
Which of the statements given above is/are correct?

Consider the following statements:
1. Microwave oven uses microwaves to heat food.
2. Microwave oven is highly efficient in the foodstuff containing water, fats and sugar.
Which of the statements given above is/are correct?

Which one of the following persons discovered the gamma-rays?