FUTO Physics 2010/2011 Past Questions

Shadows and eclipses result from the

An object, which is 3cm high is placed vertically 10cm in front of a concave mirror. If this object produces an image 40cm from the mirror, the height of the image is

A boy looks at the image of an object in a plane mirror. He observes two images, a main bright one and the other faint. The observed images result from

What must be the distance between an object and a converging lens of focal length 20cm to produce an erect image two times the object height?

For a shortsighted person, light ray from a point on a very distant object is focused.

When light is incident on an object, which is magenta in color, which of the following colors would be absorbed?

In a resonance tube experiment, the effective length of the air column for the first resonance is 20cm, when set into vibration by a tuning fork of frequency 480Hz.. Neglecting end effect, the velocity of sound in air is

A sonometer wire of length 100cm under a tension of 10N, has a frequency of 250Hz. Keeping the length of the wire constant, the tension is adjusted to produce a new frequency of 350Hz. The new tension is

One of the properties of the earth's magnetic field is that the

Three cells each of emf 1.5V and an internal resistance of 1.0 ohms are connected in parallel across a load resistance 2.67 ohms. Calculate the current in the load.