Physics Quiz 9

• 2 Ω
• 4 Ω
• 6 Ω
• 8 Ω
• Aeroplane was invented by

• Nicolas
• Valta
• Orville and Wilbur Wright
• Ampere
• What is the principle of thermopile?

• Peltier effect
• Seeback effect
• Zeeman effect
• Compton effect
• The speed of light in ait is

• 3*10^8 m/s
• 3*10^-8 m/s
• 8*10^3 m/s
• Infinity
• According to kepler’s first law of planetary motion, planets move in

• Straight lines
• Elliptical orbits
• Circular orbits
• A parabola
• A substance is colored due to the absorption of

• U.V. light
• Visible light
• The ratio of the linear stress to the linear strain of a body is called

• Rigidity modulus
• Young’s modulus
• Bulk modulus
• Hooke’s modulus
• For the same total weight and the same fuel supply a multi-stage rocket is preferred to a single stage rocket, because

• It is cheaper to build a multistage rocket
• It is easier to assemble a multistage rocket
• The final velocity achieved by a multistage rocket is higher
• Multistage rocket is safe to launch

• 250 k
• 200 k
• 400 k
• 300 k
• When two resistors, each of value 10 Ω, are connected in parallel, what is the effective value of the combination?

• 5 Ω
• 4 Ω
• 6 Ω
• 7 Ω

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