Q113. In which of the following activities are Indian Remote Sensing (IRS) satellites used? 1. Assessment of crop productivity 2. Locating groundwater resources 3. Mineral exploration 4. Telecommunications 5. Traffic studies Select the correct answer using the code given below.

For the measurement/ estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specific

Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when: 1. The orbit is geosynchronous.

Consider the following statements: The satellite Oceansat-2 launched by India helps in 1. estimating the water vapour content in the atmosphere. 2. predicting t

With reference to Indian satellites and their launchers, consider the following statements: 1. All the INSAT series of satellites were launched abroad. 2. PSLVs

Consider the following statements: Statement-I: Giant stars live much longer than dwarf stars. Statement-II: Compared to dwarf stars, giant stars have

Consider the following pairs: | Objects in space | Description | | :--- | :--- | | 1. Cepheids | Giant clouds of dust and gas in space | | 2. Nebulae

Which one of the following countries has its own Satellite Navigation System?

If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? 1. GPS and navigation systems co

Which one of the following is a reason why astronomical distances are measured in light-years?

"The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometers lon

Recently, scientists observed the merger of giant ‘blackholes’ billions of light years away from the Earth. What is the significance of this observati

Consider the following statements: 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-tim