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Two convex lens F1 and F2 with the focal length 40cm and 20cm respectively are separated by a distance 14cm. F2 is placed on the right side of the F1 and Object of height 4cm is placed in front(left side) of F1 in such a way that the distance between F1 and Object is 13cm.
a) Find the total magnification due to two lens.
b) Find the height of the final image.
c) Distance between F2 and Final Image.
A string 1.50 m long will break if the tension in it exceeds 2X10^2N. How fast (in m/s) can a rock of mass 1.50 kg be whirled in a circular horizontal path if the string is not to break? Assume the rock moves on a smooth horizontal surface (No fri..
You have a tuning fork with a frequency of 256Hz. You measure the length of a closed tube to be 32 cm for the 1st harmonic. what is the speed of sound in this tube?
Electron is moving at 90% the speed of light (c=3.00x108 m/s), and it experiences a force of F=1.08 nN for force, What is the magnitude of the magnetic field
Box moves back and forth on a horizontal frictionless surface between two different springs, as shown in the accompanying figure. The box is initially pressed against the stronger spring, compressing it 4.1cm , and then is released from rest
A 1.85 kg mass is attached to a light cordthat is wrapped around a pulley of radius 3.60 cm, which turns with negligible friction. Themass falls at a constant acceleration of 2.70 m/s2. Find the moment of inertia of the pulley.
A motorcycle daredevil is attempting to jump across as many busesas possible (see the drawing). The takeoff ramp makes an angleθ = 17.0° above the horizontal, and the landing ramp isidentical to the takeoff ramp. The buses are parked side by side,..
A person drops a cylindrical steel bar (Y = 1.50 × 1011 Pa) from a height of 3.00 m (distance between the floor and the bottom of the vertically oriented bar). what is the maximum compression of the bar
question 1 the weight of passengers on a roller coaster increases by 51 as the car goes through a dip with a 37m radius
When diving for prey, bald eagles can reach speeds of 200 mph (322 km/h). Suppose a 6.0kg eagle flying horizontally at 322 km/h suddenly grasps, What's the eagle's speed just after grasping the rabbit
Two small non conducting spheres have a total charge of 93.uC when placed 1.14m apart, the force each exerts on the other is 11.4N and is repulsive. What is the charge on each
The angle of incidence at a solid/liquid boundary is 60.4°, and the index of refraction of the solid is n = 1.96. Find what must be the index of refraction of the liquid such that the direction of the light entering the liquid is not changed
A cubical box with sides of length a#consists of five metal plates which are welded together and grounded, Find the potential everywhere inside the box
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