With reference to Indian satellites and their launchers consider the following statements 1 All the ...........

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With reference to Indian satellites and their launchers, consider the following statements

1.All the INSAT-series of satellites were launched abroad.

2.PSLVs were used to launch IRS-series of satellites.

3.India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV.

4.GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services.

How many of the statements given above are correct?

Only One

Only Two

Only Three

All Four

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Explanation:

1, 2 and 4

The statement that all the INSAT-series of satellites were launched abroad is incorrect. While some earlier satellites in the INSAT series were launched abroad, subsequent satellites in the series, as well as other satellite series like GSAT, have been launched using Indian launch vehicles.

The statement that PSLVs were used to launch IRS-series of satellites is correct. The Indian Remote Sensing (IRS) satellites have been launched using Polar Satellite Launch Vehicles (PSLVs).

The statement that India used indigenously built cryogenic engines for the first time for powering the third stage of GSLV is incorrect. The use of cryogenic engines in the GSLV was initially delayed due to technology denial, and India later developed indigenous cryogenic technology.

The statement that GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services is correct. GSAT-3, also known as EDUSAT, was launched in 2004 and aimed to provide satellite-based education services.

Therefore, the correct answer is 3 - 1, 2, and 4.