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A light object moves faster
Mark off a half-metre on a table top with chalk. Separate this equally into centimetres. Secure a long rubber band and two spring clothes pegs. Attach a clothes peg to every end of the rubber band. Now grasp the clothes pegs whereas they rest on the table top. Place them along the marked-off place on the table top. Stretch the rubber band to a distance of about 15 cm and release every clothes peg at the similar instant. Observe that they meet half way.
Describe how optical fibers used as hydrophones. Optical fibers are employed as hydrophones for sonar and seismic applications. Each hydrophone systems along with more than one
The potential difference across a 4 ohm resistor is 20 volts. Suppose that all of the energy dissipated by this resistor is in the form of heat, how many joules of heat are ra
The x-component of the electric field categorized by an electric potential V(x,y,z) be capable of be expressed as -dV/dx holding y and z constant. This would propose that the units
Q. What is cut-off or stopping potential? The minimum negative (retarding) potential specified to the anode for which the photo electric current becomes zero is called the cut
Newtons Law of Inertia Car and The Wall As per to Newton's first law, an object within motion continues in motion along with the similar speed and in the similar direction unle
The phase of weightlessness may be observed in the following situations: (i) When objects fall freely under gravity : For example, a lift goes down freely, or an airship showing
Pulmonary embolism: - It is a blood clot blocking a major artery in the lunge ,it represent a serious medical problem. - About 100 MBq of lumpy 99mTc –is injected into a vein .T
In physics, a radian per second is a unit of: a) Angular displacement b) Angular velocity c) Angular acceleration d) Angular momentum. Ans: A radian per
determine the pressure of a 20 lb force applied to an area of 10 inch squared
Q. What is Fraunhofer diffraction? a) The source as well as the screen are at infinite distances from the obstacle producing diffraction. b) The wave front suffer diffracti
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