Please answer them

Please answer them 2. 4. 5. 6. I. One light year is equal to (1) 5 x 105m (2) 4.96 x 1010 m (3) 9.46 x 1015m (4) 1.5 x 1011 m ¯Ästronomcal unit is the average distance between the (I) Centre of the sun that of the earth (2) Centre of the earth and that of the moon (3) Centre of the sun and that of the moon (4) Two poles Of the earth 3.- 'The quantity whose unit is not treated as a 7. 8. 9. 10. II. 12. Tho order of magnitude of mass (in kg) Of universe is (3) 10m (2) 55 (4) 20 Tho order of magnitude of I Itm distance is (1) 106 (3) 10-6 A new unit of length is equal to 10 m. The area of 5 rn2 expressed in terms of new unit has magnitude (1) 0.05 (3) 5.05 (2) 0.50 (4) 5.00 fundamental unit is (3) Velocity The density of water is I g'cc. The numerical value Of density of water in new unit kg/m3 is (2) Mass (4) Length (3) 102 (2) 10 (4) 103 Which of the following is a unit qi energy (4) All of these Average distance of the earth from the sun is? (I) 4.8 x 10-6 par sec g) 1.58 x 10-5 par sec (3) •1.58 x 10-6 par sec (4) 4.8 x 10-5 par sec Which of the following is a unitless quantity? Which of the following option is incorrect? (2) (3) (4) Gravity is always attractive, while electro- magnetic force can be attractive or repulsive The strong nuclear force binds protons and neutrons in a nucleus The weak nuclear force appears between electrons and neutron for the stability of an atom The gravitational force is the force of mutual attraction beween any two object by virtue of their masses (2) (3) (4) Plane angle Solid angle Refractive index All of these Speed of an object in kilometer per hour is represented as (1) kmph-l (3) KPH (2) Kmhrl (4) kmh-l