Part 1 Quiz

smooth shining surface, which rebounds the light back in same or in different direction, is called …

• mirror

• lens

• reflection of light

• point of incidence

Beam of light striking the reflecting surface is called …

• reflecting ray

• incident ray

• refracted ray

• normal ray

Band of seven colors is called …

• VIBGYOR

• spectrum

• reflection

• dispersion

In case of reflection of light, the angle of incidence (i) and the angle of reflection (r) are related as …

• i = r

• i < r

• i > r

• no definite relation

Name the type of mirror used as a back view mirror …

• plane mirror

• concave mirror

• convex mirror

• any of these

All substances are made of atom …

• true

• false

An atom is the smallest part of an … that can exist

• substance

• element

• mixture

• compound

Elements are shown in the …

• chemical properties

• substances

• periodic table

• formation of one or more new substances

Compounds are formed from elements by …

• chemical reaction

• non-chemical reaction

Compounds contain … in fixed proportion.

• do not involve chemical reaction

• involve a detectable energy change

• two or more elements chemically combined

• one type of atom only