Question # 1

To see stomach problems we use:

Choose an answer

Gastroscope

Bronchoscope

Cystoscope

All of these

Focal length for concave mirror is :

Choose an answer

-ve

+ve

same

none of these

Which types of image is formed by a concave lens on a screen?

Choose an answer

Inverted and real

Inverted and virtual

upright and real

Upright and virtual

Magnification of mirror is given by:

Choose an answer

m=p/q

m=q/p

m=pxq

m=1/p+q

Optical fibre are:

Choose an answer

Cheap

Flexible

Lighter

All of these

Which of the following is not processing:

Choose an answer

Arranging

Manipulating

Calculating

Gathering

The critical angle for a beam of light passing from water into air is 48.8 degrees. This mean that all light rays with an angle of incidence greater than this angle will be:

Choose an answer

Absorbed

Totallly reflected

Partially reflected and partially transmitted

Totally transmitted

The loudness of a sound is most closely related to its:

Choose an answer

Frequency

Period

Wavelength

Amplitude

Astronauts in space need to communicate with each other by radio links because:

Choose an answer

Sound waves travel very slowly in space

Sound waves travel very fast in space

Sound waves cannot travel in space

Sound waves have low frequency in space

The distance of the object from the mirror is represented by :

Choose an answer

q

p

m

F

The S.I unit of power of a lens is:

Choose an answer

Dioptre

Volt

Ampere

Watt

From which of the following we can get information almost about everything:

Choose an answer

Book

Teacher

Computer

Internet

____________ is always virtual in case of convex mirror.

Choose an answer

p

image

object

all of these

More Classes

Other Links

Physics 10th Class English Medium Unit 3 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer