physics questions read and revise

1. 214 write a note on milky way.
2. 216 diff bet  G and g.
3. 217 mention any 5 Indian satellites.
4. 226 Exp.applications of satellites.
5. 230 theories of evolution of universe.
6. 260 define .Elastic body/plastic body/strain/elastic limit/restoring force./stress
7. 267 State Hooke's law
8. 265 Exp. the principle ,construction and working of an hydraulic brake.
9. 267 exp.Stoke's law.
10. 268 Define cohesive/adhesive force
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