CBSE 12th

Dear Gurpreet
To become a lecturer in english you have should complete Bachelor and than Master in english further you have to apply for NET exam or you can enroll for PHD programme .
Than you can apply for lecturer in any college .
All the best.

around 60 to 70%

Yes it is possible to get admission with these scores. Very nice chances. The cutoff is generally around 97.5 percentile for getting an admission interview call.

Dear Poonam,
Yes you can get admission in electronic media course after completing 12th.

App allows only text replies sadly. Derivation needs diagrams and mathematical equations. U can expect an answer here. Search on youtube for a proper video

Dear Vaishnav,
If you have interest in Photography than the best course for your future is Bachelor of Journalism bcz through that you can understand how the media and advertising firm working and you can grow your network to getting project into the same .
In that course you can take the project into photography only and pursue your passion with good degree.
All the Best.

Neither 12th nor diploma is tough because if you want to study further i.e. UG PG etc its just the beginning so go for the one which interest you

With Commerce at 10+2 stage you are eligible to join as Airman in Group “Y” ( Non Technical) trades in Indian Air Force(IAF). The selection as an Airman in IAF is conducted through All India Selection Tests and Recruitment rallies. Look for advertisements of recruitment which are published in leading news papers. You may also visit Indianairforce.nic.in for further details. You are not eligible to appear for NDA to join as Pilot because of your non Science background. You can join accounts branch of IAF on completion of BCom or higher degree.