Question

0.1 Fill in the blanks.
1.The value of 'g' is maximum at poles and it is_________.
2.The gravitational force acting on any object on earth is called its_________.
3. Electronic configuration of mg is_______.
4.Group VIIA elements are called_________.
5.When electric current is passed through acidulated water__________ of water takes place.
6. To prevent rusting, a layer of_______ metal is applied on iron sheets.
7. The magnetic field produced by a current carrying circular loop depends upon_______.
8.The electric bulb consists of filament made up of________.
9. The image is formed on the________
of the human eye.
10 In simple microscope._____
lens is used.
11._______group contain all gases at room temperature.
12. If the distance between the two bodies becomes half, the gravitation force between them becomes _________.​

Answer 1

$\huge\tt Answer$

1) The value of 'g' is maximum at poles and it is Minimum at the equator

• At the north and the south pole they are High as they are closer to the centre of the Earth's core and lesser as we move towards the equator

2) The gravitational force acting on any object on earth is called its weight

• Weight = Mass × Gravitational Acceleration

3) Electronic configuration of Mg is 2,8,2

• Atomic number of magnesium is 12 so it will be separated as 2 in the first shell 8 in the second and the remaining 2 in the third shell

4) Group VIIA elements are called Halogens

• This group contains elements like Fluorine, Chlorine, Bromine etc...

5) When electric current is passed through acidulated water electrolysis of water takes place

• This is the process by which they seperate Hydrogen a d Oxygen

6) To prevent rusting, a layer of Zinc metal is applied on iron sheets

• This process is called as galvenization

7) The magnetic field produced by a current carrying circular loop depends upon current

• More the current stronger the magnet, lesser the current lesser the strength of the magnet

8) The electric bulb consists of filament made up of Tungsten

• Tungsten has High melting point

9) The image is formed on the Retina

• In the human eye Retina is the place where the image gets formed and then sent to the brain

10) In simple microscope convex lenses are used

• They help in forming magnified images and hence are used in microscopes

11) VII A group contain all gases at room temperature

• These group of elements are called as the halogens

12) If the distance between the two bodies becomes half, the gravitation force between them becomes 4 times

• Gravitational force ∝ 1/Distance² ,as the distance between the bodies, more the distance, lesser will the force be and lesser the distance more will the force be

Answer 2

$\huge\mathtt\green{\boxed{\underbrace\red{\overbrace\red{Answer}}}}$

• The value of 'g' is maximum at poles and it is minimum at equator.
• The gravitational force acting on any object on earth is called its weight.
• Electronic configuration of mg is 2,8,2 .
• Group VIIA elements are called halogens.
• When electric current is passed through acidulated water electrolysis of water takes place.
• To prevent rusting, a layer of zinc metal is applied on iron sheets.
• The magnetic field produced by a current carrying circular loop depends upon current.
• The electric bulb consists of filament made up of tungsten.
• The image is formed on the retina of the human eye.
• In simple microscope convex lens is used.
• VII A group contain all gases at room temperature.
• If the distance between the two bodies becomes half, the gravitation force between them becomes 4 times.