1. State law of nature of Gravitation. Write its mathematical kind.
2. If 2 objects of lots m, and M2 ar born in vacuum from a height on top of the surface of the planet (m1 is bigger than m2), that one can reach the bottom 1st and why?
3. outline free fall. what's the worth of acceleration intimate by a body throughout free fall?
4. Why will the burden of Associate in Nursing object vary at poles and at equator?
5. notice weight of Prashant if his mass is forty six weight unit (g= ten m/s?)
6. in line with Niels Henrik David Bohr and Bury theme, what's the most range of electrons which will be accommodated {in a|during a|in Associate in Nursing exceedingly|in a very} N-shell of an atom?
7. that of the subsequent don't have same range of valence electrons?
H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, CI, Ar, K, Ca
(a) H, Li, Na, K
(b) He, Mg, Be, Ca
(c)B, AI, N, P
(d) 0,5
8. {the range|the amount|the quantity} of electrons in part X is fifteen and therefore the number of neutrons is sixteen.
Which of the subsequent is that the correct illustration of the element?
(a) * (b) 16 PF
(c) 15X
(d) 1*
9. within the Thomson's model of atom, that of the subsequent statements ar correct?
(i) The mass of the atom is assumed to be uniformly distributed over the atom.
(ii) The electric charge is assumed to be uniformly distributed over the atom.
(iii) The electrons ar uniformly distributed within the charged sphere.
(iv) The electrons attract one another to stabilize the atom.
(a) (i), (ii) and (iii)
(b) (i) and (iii)
(c) (i) and (iv)
(d) (i), (iii) and (iv)
10. within the following queries, the Assertion and Reason are proposes. Read the statements fastidiously and select the proper various from the following:
(a) each the Assertion and therefore the Reason ar correct and therefore the Reason is that the correct clarification of the Assertion.
(b) The Assertion and therefore the Reason ar correct however {the reason|the rationale|the clarification} isn't the proper explanation of the Assertion.
(c) Assertion is true however the explanation is fake.
(d) The statement of the Assertion is fake however the explanation is true.
Assertion: Mass of Associate in Nursing atom is much thanks to protons and neutrons alone
Reason: The mass of negatron is 1837 times heavier than the nucleon
11. driblet methodology of transmission of sickness is found in
(a) cold
(b) Cupid's disease
(c) polygenic disease
(d) typhoid fever
12. contributing agent of T.B. is
(a) enterics
(b) eubacterium
(c) true bacteria
(d) Diplococcus pneumoniae.
13. Name a immunizing agent that saves the lives of babies from 3 diseases.
14. that of those is Associate in Nursing acute ill and why?
Tuberculosis, cancer, diarrhea, hypertrophy
15. Name the target organs for the subsequent diseases:
(a) liver disease
(b) respiratory disorder
16. Name the primary antibiotics? WHO discovered it?
17. (a) A body is thrown up with a speed of 40m/s. however long will it desire reach the best point? once what quantity time can the body come to the ground? (g=10m/s)
(b) offer the distinction between mass and weight?
19. What ar the common preventive measures against communicable diseases?
20. (a) Derive the relation between g and G
(b) offer 2 variations between g and G.
(c) If radius of earth becomes half its gift worth and mass becomes four times its gift worth, however can the burden of Associate in Nursing object on the surface on earth be affected?
21. (a) make a case for why did Rutherford choose a skinny foil in his alpha scattering experiment?
(b) What observations in a very scattering experiment semiconductor diode Rutherford to form the subsequent
Conclusions: (i) Most of the area in Associate in Nursing atom is empty.
(ii) Nucleus is charged.
(c) Draw a sketch of Niels Henrik David Bohr a model of Associate in Nursing atom with number fifteen.
(d) chemical element atom has Associate in Nursing mass of four u and 2 protons in its nucleus. what percentage neutrons will it have?
22. (a). what's distinction between being 'healthy" and sickness free"?
(b). Why ar we tend to suggested to require bland and alimental food once we ar sick?
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