WBCS Mains 2022 Exam Paper Analysis : Physics & Chemistry | WBPSC Wallah 

APORAJITO(অপরাজিত) Batch (Mahapack For One Day Exam) Enrollment Link👉🏻 physicswallah.onelink.me/ZAZB/8wa2tdl0 UDDESHYA(উদ্দেশ্য) Batch (KP SI/Sergeant Exam 2023) Enrollment Link👉🏻 physicswallah.onelink.me/ZAZB/6ge74zuu DRIDHTA(দৃঢ়তা) Batch (WBPSC Food SI Exam 2023) Enrollment Link👉🏻 physicswallah.onelink.me/ZAZB/i9wneyae UDYAM(উদ্যম) Batch (WBPSC Clerkship Exam 2023) Enrollment Link👉🏻 physicswallah.onelink.me/ZAZB/19gl1r3q NIRBHIK(নিৰ্ভীক) Batch (WBPSC Miscellaneous Exam 2023) Enrollment Link👉🏻 physicswallah.onelink.me/ZAZB/w9hmc7u4 Join WBPSC Wallah Official Telegram Channel 👉🏻 t.me/WbpscWallah WBPSC Wallah Official Instagram 👉🏻 instagram.com/wbpscwallah?igshid=NGExMmI2YTkyZg== PW App/Website👉🏻physicswallah.onelink.me/ZAZB/PWAppWEb PW Store👉🏻 physicswallah.onelink.me/ZAZB/qqee0bv4

Q.21 ) I have Made a Mistake ... The correct answer is concrete ... Mortar is Water Sand & Cement Mixture ..If we add stone chips or Peebles to it, it becomes harder and make concrete ..

The contact angle between water and glass is 0° The main component of biogas is methane

Thanks sir.

Thank you sir ♥️

Sir all subject er class gulo aktu numbering korle vlo hote . syllabus dhore dhore korale vlo hoto sir amader couching nayar mto samartha nei

Sound ektu low

Thank you Sir for this nice session.

concrete hoba.. mortar hoba na.. I am a civil engineering student

Sound audible chilo

apni pw te class kara6en khub valo. jee main er class karan sir apni

Ata physics wallah ar akta chenel?

Only Science er course thakle janaben.

Thank u sir