Geology and Geophysics
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE GG-1 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.
Question 25
Open questionGGNAT2 marksNeeds review
The wavelength of a certain portion of the electromagnetic spectrum ranges from 2000 nm to 3000 nm. The highest frequency associated with the above portion of the spectrum is__________×10⁸ MHz (rounded off to one decimal place).
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Open questionGGNAT2 marksNeeds review
Consider that the upper continental crust is 10 km thick and made up of granitic rock having density of 2800 kg/m³. The surface heat flow due to radiogenic heat from the granitic rock having heat production value of 10⁻⁹ W/kg is____________ mW/m² (answer in integer).
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Open questionGGMCQ1 markNeeds review
Which one of the following stereographic projections represents a reclined fold?
Your answerChoose one option.
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