NTSE Sample Questions : 2016 Jharkhand State (SAT)
Disclaimer: This website is NOT associated with CBSE, for official website of CBSE visit - www.cbse.gov.in
NTSE Sample Questions : 2016 Jharkhand State (SAT)
1. A rod of length 5cm lies along the principal axis of the concave mirror of focal length 15cm in such a way that the end of the closer to the pole is 30cm away from it. Then the length of the image —
(1) 2.75 cm
(2) 3.75 cm
(3) 4.75 cm
(4) None of the above
2. If an object moves towards or away a plane with a velocity v then the image will approach or recede with velocity.
(1) v
(2) 2v
(3) 3v
(4) 4v
3. The focal length of a concave mirror depends upon
(1) The distance of the object from the mirror
(2) The distance of the image from the mirror
(3) The radius of curvature of the mirror
(4) None of the above
4. The rainbow is formed due to ?
(1) Refraction
(2) Internal Reflection
(3) Dispersion
(4) all the above
5. A person cannot see distincly any object placed beyond 40cm from his eye. What is the power of the lens which will enable him to see distant stars clearly?
(1) +2.5D
(2) -2.5D
(3) +3.5D
(4) -3.5D
6. An electrical power station has the power 200 Megawatt (MW), then the electrical energy produced per day will be
(1) 200 MW –hour
(2) 4800 MW –hour
(3) 4800 MW
(4) 4800 joule
7. How many electrons flow per second through the filament of 220V and 110W electric bulb?
(1) 3.125x1018
(2) 3.125x1018
(3) 3.125x1018
(4) 3.125 x1018
8. The S.I unit of electrical resistivity is?
(1) ohm
(2) m
(3) ohm m-1
(4) ohm m
9. A bulb of 100 Watt, 250 Volt has the resistance of.
(1) 2500 ohm
(2) 625 ohm
(3) 25 ohm
(4) 2.5 ohm
10. The first artificial satellite was
(1) Sputnik -1
(2) explorer -1
(3) Aryabhatta
(4) Luna-3