csir-net 2017 june 94
CSIR-NET 2017 94. The energy of an S-wave travelling through the mantle and incident on the mantle-core boundary is A) totally reflected back B) partly reflected and partly re…
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Showing posts matching the search for csir-net 2017
CSIR-NET 2017 JUNE (23)
CSIR-NET 23. Which of the following geological time intervals witnessed the first appearance of skeletal organisms in the Earth's history? A) Triassic B) Cambrian C) Devonia…
CSIR-NET 2017 DEC(46)
CSIR-NET 46. Youngs modulus of a rock specimen of density 2.7 gm/cc is 9.72 megabar. The longitudinal wave velocity (in km/s) in the rock is 1. 4.8 2. 5.2 3. 6.0 4. 7.2 Solu…
CSIR-NET 2017 JUNE 42
CSIR-NET 42. Which is an apparent force? A) Gravitational force B) Centrifugal force C) Pressure Gradient force D) Viscous force Answer: B For more information f…
CSIR-NET 2017 JUNE 21
CSIR-NET 21. Match the minerals and the commonly used isotopic method of dating them. Mineral …
CSIR-NET 2017 DEC (102)
102. A seismic survey is carried out over a region comprising of a sequence of alternating horizontal layers of shale and sandstone, each having a thickness of 0.5 km with the shale layer at th…
CSIR-NET 2017 DEC
116) An earthquake occurring at every 100 years leads to a displacement of 2m over a 40 km long fault. The corresponding shear strain accumulation rate is _____ (Thank to Chandrasekhar,…
GATE-2024 (27)
27. With increasing depth in the Earth, the P-wave velocity shows a significant decrease across which one of the following boundaries? A) crust – mantle B) mantle – outer core C) outer core –…
GATE-2024 18
18. The given figure shows the ray path of a P – wave propagating through the Earth. Choose the CORRECT P – phase corresponding to the ray path. A) PcP B) PKP C) PPP D) PmP Answer: B Fo…
CSIR-NET 2017 DEC 106
106. A planet is 11 times the radius of the Earth in size, but one-fourth in mass density. The gravity field on its surface would be around (in gals) A) 1600 B) 2700 C) 3300 D) …
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