SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions for Science and Technology 1

i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine

i) Observe the following reaction and answer the following questions.
`CuSO_4 (aq) + Fe (s) →  FeSO_4(aq) + Cu (s)`
a) Identify and write the type of chemical reaction.
b) Write the definition of above reaction.

The reaction of iron nail with copper sulphate solution is ______ reaction.

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

The phenomenon of splitting of light into its component colours is ___________ .

Choose the correct alternative and rewrite the following:

A glass slab is placed in the path of convergent light. The point of convergence of light

Differentiate between conductors and insulators.

Draw a labelled diagram: Dispersion of light through a prism.

Answer the following:

What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light. 

Rewrite the following statement by selecting the correct option.

The S.I. unit of resistance is __________.

Rewrite the following statement by selecting the correct option:

If a ray of light strikes a glass slab at an angle of 600 with the surface of the slab, the angle of incidence must be __________________.

Match the Columns:

• Complete the given chemical reaction:
  \[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______
• Name the type of the reaction.

The elements from the zero group are called _______.

The elements from the zero group are called _______.

The process of separation of light into its component colours while passing through a medium is called _______.

In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.

If a spacecraft is to be sent to travel to outer space, it must have a minimum velocity of _______.

The astronomical object closest to us is the _______.

Eka boron : Scandium : : Eka Aluminum : _______