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20.
In Young's double slit experiment, the intensity at a point is 75% of maximum intensity. What is the smallest distance of this point from the central fringe? Given d = 0.1mm, D = 1m and l = 600 n..
Tony's score in five matches are 23, 17, 26, 29, and 20. Find Tony's a..
Tony's score in five matches are 23, 17, 26, 29, and 20. Find Tony's average score. => 23 or 18 or 26 or 25..
Select the measurements that match the sides of a triangle.
Select the measurements that match the sides of a triangle. => 7, 12, 1 or 7, 7, 7 or 7, 9, 20 or 7, 7, 19..
Four pupils picked some flowers from a garden. Ana picked 15, Sara pic..
Four pupils picked some flowers from a garden. Ana picked 15, Sara picked 30, Tina picked 20 and Liza picked 25 flowers. Choose the appropriate pictograph that matches with the data. => Graph 1 or Graph 4 or Graph 2 or Graph 3..
Question 20
Question: The number of molecules in 4.25 g of ammonia is approximately 1. 1.0 x 10 23 2. 1.5 x 10 23 3. 2.0 x 10 23 4. 3.5 x 10 23 Answer: ..
Example: 20
A compound was found to have the following percentage composition: Nitrogen = 21.21%, Hydrogen= 6.06%, Sulphur = 24.24% and Oxygen = 48.48% (N=14, H=1, S=32, O=16). Find its empirical formu..
Numerical - 20
In Young's double slit experiment, the intensity at a point is 75% of maximum intensity. What is the smallest distance of this point from the central fringe? Given d = 0.1mm, D = 1m and l = 600 n..
Question 20
Question: Impulse = _________. 1. 2. 3. 4. Answer: ..
Question: Impulse = _________. 1. 2. 3. 4. Answer: ..Question 20
Question: 100 kg.wt=________ . 1. 980 N 2. 9.800 N 3. 1000 N 4. 0.98 N Answer: ..
Question 20
Question: Tyndall Effect in colloids is due to _________. 1. dispersion of light 2. merging of light rays 3. scattering of light 4. convergence of light rays Answer: ..
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