How far will the object have to be placed from the lens

Assignment Help Physics

Reference no: EM13662573

You want to project an image onto a wall.

A typical slide for a projector is 24mm X 36 mm and the screen at the front of a room is 5m away.

A) If you wish to fill a 1.2m X 1.8m screen, what focal length of lens do you need?

B) How far will the object have to be placed from the lens?

Reference no: EM13662573

Questions Cloud

Center of mass of automobile truck system from traffic light : A 1700 kg automobile is at rest at a traffic signal. At the instant the light turns green, the automobile starts to move with a constant acceleration of3.0 m/s 2. At the same instant a2200 kg truck, travelling at a constant speed of 6.0 m/s, overtake..

What is the final velocity of the probe : A 6080 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?

When will pendulum bob produce a real image in the mirror : A pendulum 2 meters long is positioned so that the pendulum bob is at the focus of a concave mirror when the bob is at rest. The bob is then displaced halfway to the mirror and released. When will the pendulum bob produce a real image in the mirror? ..

What is the minimum uncertainty in the blocks speed : A 1.30 kg block rests on the icy surface of a frozen pond, which you can suppose to be frictionless. If the location of the block is measured to a precision of 0.90 cm, what is the minimum uncertainty in the block's speed, assuming the mass is known ..

How far will the object have to be placed from the lens : You want to project an image onto a wall. A typical slide for a projector is 24mm X 36 mm and the screen at the front of a room is 5m away. If you wish to fill a 1.2m X 1.8m screen, what focal length of lens do you need?

What is the minimum time required to boil all the water away : A pot containing 1.02 liter of water, initially at 18°C, is placed on a1030 W electric heating element. How much heat should be supplied to the water to bring it to a boil? How much heat is necessary to boil all the water away?

Compute the root-mean-square speed of ammonia : Compute the root-mean-square speed of ammonia (NH3) molecules at 56.0° C. An atom of nitrogen has a mass of2.33°—10–26 kg and an atom of hydrogen has a mass of 1.67°—10–27 kg.

Compute the speed v : A metal strip 8.99 cm long, 0.779 cm wide, and 0.714 mm thick moves by constant velocity through a uniform magnetic field B= 0.970 mT directed perpendicular to the strip, as shown in Fig.28-37. A potential dissimilarity of 3.79 µV is measured between..

What common temperature will the ring now slide onto the rod : A steel rod is 3.000 cm in diameter at 25° C. A brass ring has an interior diameter of 2.992 cm at 25° C. At what common temperature will the ring now slide onto the rod?

User Account

All Pages