► MCQ Test Series Answer Key Form
Submit your Answers. Results based on Quiz Code to your email.
MCQ Question Papers
Posted by our guest writer S . If there is any content violations Report the Administrator by clicking "Report Problem".
Posted by our guest writer S . If there is any content violations Report the Administrator by clicking "Report Problem".
You are viewing PhysicsKerala, MCQ Test Series Answer Key Form Click Here for more Recent Updates ... Question Papers and study materials..are available to download . Join the group and Help the group to Improve. |
![]() |
.
Sreejith P Department of Physics Malabar Christian College, Calicut 1. What is the CME of the Sun? √ Coronal Mass Ejection ⃝ Coronal Material Earth ⃝ Carbon Mass Ejection ⃝ None of these 2. What is the current sunspot cycle? √ Solar cycle 25 ⃝ Solar cycle 24 ⃝ Solar cycle 23 ⃝ Solar cycle 21 3. What is size of sunspot? √ Greater than 1500 km ⃝ 10 km ⃝ 20 km ⃝ 5 km 4. Equatorial plasma bubble is ⃝ Troposphere irregularities √ Ionosphere irregularities ⃝ Mesosphere irregularities ⃝ None of these 5. What do you mean by GPS? ⃝ Global Pollution System √ Global Positioning System ⃝ General Positioning System ⃝ None of the above Page 5 6. F-region of ionosphere is known as ⃝ Alfren Layer ⃝ Saha Layer √ Appleton Barnett Layer ⃝ None of these 7. What is the range of F layer? √ about 150 to 220 km ⃝ about 30 km ⃝ about 40 km ⃝ none of the above 1. Condition for any nuclei to be NMR active is that ⃝ Atomic number should be odd ⃝ Mass number should be odd ⃝ Both atomic number and mass number should be odd ⃝ Both atomic number and mass number should be even 2. What Signal splitting in NMR arises from ⃝ Shielding effect ⃝ Spin-spin decoupling ⃝ Spin-spin coupling ⃝ Deshielding effect 3. The ratio of peak splitting in triplet is ⃝ 1:1 ⃝ 1:2 ⃝ 1:2:1 ⃝ 1:3:3:1 4. In proton NMR spectroscopy, hydrogen bonding results in ⃝ Shielding effect ⃝ Deshielding effect ⃝ Peak splitting ⃝ All of the above Page 6 5. Which of the following environmental effect is influenced by magnetic field strength? ⃝ Chemical shift ⃝ Spin splitting ⃝ Both are influenced ⃝ Both are not influenced 6. Spin-spin coupling is not observed when the protons are separated by more than ⃝ one sigma bond ⃝ Two sigma bond ⃝ Three sigma bonds ⃝ Four sigma bonds 7. Chemical shift has the units of ⃝ Parts per million ⃝ Parts per billion ⃝ Tesla ⃝ No units 8. Equivalent protons in a molecule will have ⃝ Same environment ⃝ Same chemical shift ⃝ Same shielding effect ⃝ All of the above 9. Coupling constant of two nuclei is defined as ⃝ Ratio of chemical shifts ⃝ Distance between splitted peaks in Hz ⃝ Difference of chemical shifts ⃝ Ratio of absorption frequencies |
Information about PHYSICS, MCQ Test Series Answer Key Form and more... Free Download Question Papers and study materials.. NB : The details given here are taken from various sources. Please Verify the contents and contact us for your valuable suggestions. |
0 comments :
Post a Comment
Comment.. and check "Notify me" for following comments to your email.
If you are experiencing any difficulty in posting comments, then try another browser. (example use Google Chrome)