Q. Which one of the following is not a plant hormone?
1) Cytokinin
2) Ethylene
3) Gibberellin
4) Insulin
Q. The Earth's magnetic field is due to -
1) currents circulating inside the core
2) presence of a huge magnet at its centre
3) moving charges outside is space
4) None of the above
Q. CT Scan is done by using -
1) Infra-red rays
2) Visible light
3) Ultrasonic waves
4) X-rays
Q. Which of the following is used for correcting myopic eyes?
1) Convex Lens
2) Concave Lens
3) Cylindrical Lens
4) None of the above
Q. The sky appears blue due to-
1) Scattering of light
2) Reflection of light
3) Refraction of light
4) Diffraction of light
Q. Decibel unit is used to measure-
1) Light intensity
2) Sound intensity
3) Magnitude of Earthquake
4) None of the above
Q. The tail of a comet always points-
1) Towards the Sun
2) Towards North-East
3) Towards South-East
4) Away from the Sun
Q. 'Blue tooth' technology allows -
1) Landline phone to mobile phone communication
2) Signal transmission on mobile phones only
3) Wireless communication between equipments
4) Satellite television communication
Q. What does an air conditioner installed in a room control?
1) Humidity and temperature only
2) Temperature only
3) Pressure and temperature only
4) Humidity, pressure and temperature
Q. Which of the following has the highest share in power generation in India?
1) Thermal power
2) Nuclear power
3) Hydro power
4) All the above have equal share
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