Write a letter to your younger brother advising him to leave society of bad friends and to be regular in studies

 

                                                                                                                    Examination Hall,

                                                                                                                   Gulshan-e-Iqbal,Karachi.

                                                                                                                   April, 15, 2015

Dear  Amir,

            Thank you very much for your kind letter. I was so glad to read it that I cannot express my feelings

Write a letter to your friend inviting him/her to your birthday party.

                                                                                                                  Examination Hall,

                                                                                                                 Gulshan-e-Iqbal,Karachi.

                                                                                                                  April, 15, 2015

Dear friend,

                Thank you very much for your kind letter. I was so glad to read it that I cannot express my

Write a letter to your friend asking him/her to describe what he/she intends to do during the winter vacation.

Examination Hall,

                                                                                                                Gulshan-e-Iqbal,Karachi.

                                                                                                                April, 15, 2015

Dear friend,

                Thank you very much for your kind letter. I was so glad to read it that I cannot express my

Write a letter to your uncle in the U.K. asking for information about habits & customs of the English people

 

                                                                                                                   Examination Hall,

                                                                                                                  Gulshan-e-Iqbal,Karachi.

                                                                                                                   April, 15, 2015

Dear uncle,

Yesterday I received your kind letter. I was so glad to read it that I cannot express my feelings in

Write a letter to your uncle thanking him for his birthday gift

  

                                                                                                                    Examination Hall,

                                                                                                                    Gulshan-e-Iqbal,Karachi

                                                                                                                     April, 15, 2014

Dear uncle,

          Yesterday I received your kind letter. I was so glad to read it that I cannot express my feelings in

ELECTRICITY CHAPTER # 16 Physics 10th - Question Answers

 Physics 10th - Question Answers

ELECTRICITY
CHAPTER # 16

Q.1: What do you know about the electrical nature of matter?

Ans:
Matter is made up of atoms and an atom consists of three elementary particles called neutron, proton, and electron.

• Proton is positively charged and present in the nucleus. It is 1836 times heavier than an electron.
• Neutron has no charge. It is also present in the nucleus. Its mass is equal to the mass of a proton.
• Electron is a negatively charged particle. Its charge is equal to the charge of a proton. Electrons move around the nucleus in orbits.

NATURE OF LIGHT AND ELECTROMAGNETIC SPECTRUM CHAPTER # 15 Physics 10th - Question Answers

 Physics 10th - Question Answers

NATURE OF LIGHT AND ELECTROMAGNETIC SPECTRUM
CHAPTER # 15

Q.1: What is Newton’s corpuscular theory of light?

Ans:
This theory which was proposed by Newton is given briefly as under:

• Light consists of tiny (minute) particles called corpuscles.
• These corpuscles are emitted from a source of light (like the sun).
• These corpuscles are traveled in a straight line.
• When these particles enter the eyes, they create the sensation of sight.
• Velocity of light in a denser medium is greater.