SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Answer the following:

State the principles of the electric motor and electric generator. 

Answer the following question:
What is overloading? When does it occur? How can overloading be avoided?

Anuja cannot see the blackboard writing but she can see nearby things.
(a) What is the eye defect she is suffering from?
(b) State the possible reason for her defect.
(c) How is it corrected

Choose the correct option:

A conductor rod of length (l) is moving with velocity (v) in a direction normal to a uniform magnetic field (B). What will be the magnitude of induced emf produced between the ends of the moving conductor?

Observe the given figure of Fleming’s Right Hand Rule and write the labels of A and B correctly.

Observe the given figure of reactivity series of metals and answer the following questions:

                    Reactivity series of metals

1. Name two metals which react with water.
2. Name two moderately reactive metals.
3. Name the most highly reactive metal and the most less reactive metal.

The right-hand thumb rule is also called _______ rule.

Which of the following scientist invented the rule of electromagnetic induction?

In Myopia the human eye _______.

Due to elongation of _______ and increase in curvature of the eye lens, a person cannot see distant objects clearly.

In electrolytic reduction of alumina _______ is used as a cathode.

Iron is _______.

If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?

Aluminium oxide is _______ oxide.

Atomic number of aluminium is _______ and its electronic configuration is _______.

Extraction of moderately reactive elements is done by _______ and _______ method.

_______ is the least reactive metal.

Fleming's left hand rule : electric current : : Fleming's right hand rule : _______

Nearsightedness: elongated eyeball : : farsightedness: _______

Nearsightedness : concave lens : : farsightedness : _______