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Questions : 13, 14 and 15
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Kumar Ketan is teaching live on Unacademy Plus

Kumar Ketan
#6 years teaching experience #Physics Faculty in Kota #"magical education" (200k+ subs) #Follow for Physics of JEE NEET AIIMS etc. #Writer

U
Unacademy user
U clear my all concepts ty☺
sir last wale 2no question hogye lekin formula sheet ki help li thee Inn questions ko nhi jodne chiye nah Apne total m 1st wale m 5g answer ah rha tha bt question m Likha tha kitni hydrogen Bhar Nikal gyi jbki Mene kitni andar rhgyi woh Nikal di.. thnku sir
Kumar Ketan
5 months ago
Just honest with yourself, you can add or remove any questions... Bs itna yaad rkhna beta ki exam maar nhi krta to Thoda sa bhi feel ho ki apko problem hui to us pr practice kijiye
Kumar Ketan
5 months ago
Maaf*
Sajal saxena
5 months ago
Han ji sir thnku for advice sir
Sajal saxena
5 months ago
Han ji sir thnku for advice sie
Sajal saxena
5 months ago
Han ji sir thnku for advice sir
Sajal saxena
5 months ago
Han ji sir thnku for advice sir
Sajal saxena
5 months ago
Han ji sir thnku for advice sir
plz sir reply approx till when u will complete this course..? and is this will contain physics jee main all lessons questions..? and r these questions suficient for jee main physics practice , as my theory and concepts r completed but i had not practiced plz can u help !!!!
Kumar Ketan
5 months ago
Nothing is sufficient in your study beta... But of course, you can practice from this course... Besides this, Pls visit on profile once, you'll get a lot of course like most expected questions, last 38 years questions collection (3 part) , practice questions on various topics like projectile motion, com, elasticity, em wave etc... This course will complete this month (Max part) and next month (remaining part)
Being COOL
5 months ago
thanku so much sir for ur reply!!!!!!!!!!
Kumar Ketan
5 months ago
anytime dear
Being COOL
5 months ago
😊😊👍👍

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  2. A vessel has 6 g of hydrogen at pressure P and temperature 500 K. A small hole is made in it so that hydrogen leaks out. How much hydrogen leaks out if the final pressure is and temperature falls to 300 K? (a) 2 g (b) 3g (c) 4g (d) 1 g


  3. PV=-RT 6 Initially, PV =-Rx 500


  4. Finally, (if x g gas leaks out) P,/ = (6-x) RX 300 2 Dividing eqn. (i) by (ii), we get 6 x3


  5. Interference fringes were produced in Young's double slit experiment using light of wavelength 5000 . When a film of material 2.5 x 10-3 cm thick was placed over one of the slits, the fringe pattern shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is


  6. Fringe width where D is the distance between the screen and slit and d is the distance between two slits. When a film of thickness t and refractive index u is placed over one of the slit, the fringe pattern is shifted by distance S and is given by Given, S 20B


  7. From equations (i), (ii) and (iii) we get, 20>< 5000 >< 10-8 cm 2.5 x103 cm 20 ( -1) or or


  8. A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4 cm. Find the magnification, if arn object is kept at a distance of 5 cm from the objective, so that the final image is formed at the least distance of distinct vision 20 cm. (a) 12(b) 11 (c) 10 (d) 13


  9. Here, uo5 cm, f 4 =10cm, D = 20 cm According to lens formula or tl uo Substituting the given values, we get v 4 5 4 5 20 v = 20 cm