Well I did not find any trick in Ur video ma'am Okie so I'm sharing a trick To find Energy E=20×10^-19÷wavelength (If the wavelength is 660nm then put 6.6 ) So if u divide 20×10^-19÷6.6=3×10^-19 which is Ur required answer
Very very thankful mam, aapne mrko wo bta diya jo sir nhi bta paye the school k that is how to identify what to do in the question and now I'm able to do. Thanku mam 🤍🤝
Any book will be good for MCQ practice. In all books you will get similar type of questions. Find the one in which different difficulty lavel questions are given. And previous year exam questions are also given.
The dissociation energy of H-2 is 430.53kgmol-1 if hydrogen is dissociated by illumination with radiation of wavelength 253.7 nm, the fraction of the radiant energy which will be covert in to kinetic energy is given by A) 1.22% B) 8.76% C)2. 22% D)100%
First calculate the energy of light by using formula E = hc/wavelength Then, calculate the energy required to dissociate one H2 molecule = 430.53 X 10³ J / 6.022 X 10²³ Then, find out the difference in energy of light and energy required to break one H2. Now calculate the percentage = difference in energy X 100 / Energy of light.
In questions me mostly problem 10 ki powers ko solve karne me mistake karte hain. To numbers ka multiplication division alag karo. Aur 10 ki power wale numbers ko alag likho. Jab multiplication karoge tb powers ko add karna. Jab division karoge tb powers ko subtract karna.
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Well I did not find any trick in Ur video ma'am
Okie so I'm sharing a trick
To find Energy
E=20×10^-19÷wavelength (If the wavelength is 660nm then put 6.6 )
So if u divide 20×10^-19÷6.6=3×10^-19 which is Ur required answer
C=3×10⁸
Very very thankful mam, aapne mrko wo bta diya jo sir nhi bta paye the school k that is how to identify what to do in the question and now I'm able to do. Thanku mam 🤍🤝
You're welcome 🙂
Chemistry MCQ book konsi अच्छी rahegi
Any book will be good for MCQ practice. In all books you will get similar type of questions. Find the one in which different difficulty lavel questions are given. And previous year exam questions are also given.
@@ChemistryNotMystery thanks 👍 sir
𝒔𝒊𝒓 𝒏𝒂𝒉𝒊 𝒎𝒂𝒎😂😂@@palkaraniket_96k
The dissociation energy of H-2 is 430.53kgmol-1 if hydrogen is dissociated by illumination with radiation of wavelength 253.7 nm, the fraction of the radiant energy which will be covert in to kinetic energy is given by
A) 1.22%
B) 8.76%
C)2. 22%
D)100%
Mam plss tell how to solve this question
First calculate the energy of light by using formula E = hc/wavelength
Then, calculate the energy required to dissociate one H2 molecule = 430.53 X 10³ J / 6.022 X 10²³
Then, find out the difference in energy of light and energy required to break one H2.
Now calculate the percentage = difference in energy X 100 / Energy of light.
@@drpreetipranay thank you mam from Indian
Thank you ma'am it's very help full!! ❤🥰
Glad to hear that
Very helpful
bhery helpful
Nice video thank you mam
Most welcome 😊
Neet ka student hoon but I liked these questions💕💕 ❤
😂🤣🤣🤣🤣
Thx
Please tell me how to conversion unit 😢
Please tell me exactly which conversation do you want to learn?
@@ChemistryNotMystery , i maen agar question mai 100nm diya hai to esko m , cm , angstrom mai kaise change karte hai
@@ChemistryNotMystery , aapse ek request hai mujhe jis topic mai problem hoti hai kya AAP uska video bna skti hain 🙏
@@studywithanuj3424 Yes, sure
@@studywithanuj3424 you need to learn conversation factors.
1m = 100 cm
1m = 10^9 nm
1m = 10^10 Å
❤
Its not helpful where is the full solution 😑
SOLVE KRNA SIKHNA THA MAAM .. APLLY KRNA TOH ATTAA HE ... NUMERIC VALUE SOLVE NHI HOTI HEIN
In questions me mostly problem 10 ki powers ko solve karne me mistake karte hain. To numbers ka multiplication division alag karo. Aur 10 ki power wale numbers ko alag likho. Jab multiplication karoge tb powers ko add karna. Jab division karoge tb powers ko subtract karna.
Noo usee 😢
𝑰𝒏 𝒒𝒖𝒆𝒂𝒕𝒊𝒐𝒏 3𝒓𝒅 𝒚𝒐𝒖 𝒕𝒂𝒌𝒆 𝒗𝒂𝒍𝒖𝒆 𝒐𝒇 𝒄=3×10^10 𝒃𝒖𝒕 𝒗𝒂𝒍𝒖𝒆 𝒐𝒇 𝒄 𝒊𝒔 3×10^8
The value of c is different for m/s and in cm/s.