Transparent, translucent aur opaque kya hai?
Short mein jawab
Transparent materials ke aar-paar saaf dikhta hai, jaise kaanch, paani aur hawa. Translucent materials ke aar-paar dikhta hai par saaf nahi, jaise frosted glass aur butter paper. Opaque materials ke aar-paar bilkul nahi dikhta, jaise lakdi, cardboard aur dhaatuein. Har tarah ka material uske kaam ke hisaab se chunte hain, khidki se darwaaze tak.
Koi sawal atak gaya? Photo lo, Lagnever AI step-by-step samjhayega. 7 din ka trial sirf ₹2. Google Play se app lo
Dekhne dene ke teen tareeke
Kuch materials ke aar-paar poora dikhta hai, kuch nazaara dhundhla kar dete hain, aur kuch use poori tarah rok dete hain.
- Transparent materials ke aar-paar saaf dikhta hai: kaanch, paani, hawa aur cellophane paper.
- Translucent materials ke aar-paar dikhta hai, par saaf nahi: frosted glass, jiski satah dhundhli hoti hai, aur butter paper.
- Opaque materials ke aar-paar bilkul nahi dikhta: lakdi, cardboard aur dhaatuein.
Chhupan-chhupai
Chapter mein Ghulan ek deewar ke peechhe chhupta hai, Sheeta ek bade ped ke peechhe aur Sara frosted glass ke darwaaze ke peechhe, jabki Sheeta ka chhota bhai apne ghar ki kaanch ki khidki se dekh raha hai.
| Kahan | Material ka prakaar |
|---|---|
| A: Ghulan, deewar ke peechhe | Opaque |
| B: Sheeta, ped ke peechhe | Opaque |
| C: Sara, frosted glass ke peechhe | Translucent |
| D: bhai, kaanch ki khidki par | Transparent |
Ghulan aur Sheeta ne opaque cheezein chuni taaki wo bilkul na dikhein; Sara ka frosted glass use sirf aadha chhupa paaya, kyunki uski aakriti dhundhli dikhti thi. Agar bhai ki khidki lakdi ki aur band hoti, to wo unhe nahi dekh paata, kyunki lakdi opaque hai.
Roz ki cheezon ko group karna
| Cheez | Prakaar |
|---|---|
| Kaanch ka gilaas | Transparent |
| Khidki ka kaanch | Transparent |
| Butter paper | Translucent |
| Frosted glass | Translucent |
| Rubber (eraser) | Opaque |
| Lakdi ka board | Opaque |
Kya paani badal sakta hai?
Saaf paani transparent hai: gilaas ke tale ka sikka dikh jaata hai. Thoda doodh ya mitti milaao to paani dhundhla aur translucent ho jaata hai; bahut saari mitti ya syaahi se wo opaque ho jaata hai.
Khud karke dekho
Kaanch ki sheet, saaf plastic ki thaili, cellophane, butter paper, tissue paper, kapda, cardboard aur steel ki plate ikattha karo. Har ek ko apni aankh aur ek lamp ya khidki ke beech pakdo, aur teen groups mein baanto. Tum dekhoge ki ek hi material motaai badalne se group badal sakta hai: tissue paper ki ek parat se aakriti dikhti hai, par moti gaddi se bilkul nahi. (Extra: saade kaagaz par tel ki boond us jagah ko translucent bana deti hai, isliye tel waale khaane se kaagaz ki thaili par aar-paar dikhne waale dhabbe padte hain.)
Kuch cheezon ke aar-paar kyun dikhta hai (Extra)
Hum koi cheez tab dekhte hain jab usse aane waali roshni hamari aankh tak pahunchti hai. Transparent material lagbhag saari roshni seedhe paar jaane deta hai, isliye tasveer saaf rehti hai. Translucent material roshni ko paar to jaane deta hai par kai dishaon mein bikher deta hai, isliye tasveer dhundhli ho jaati hai. Opaque material roshni rok deta hai, isliye uske peechhe ka nahi dikhta.
Har tarah ka istemaal
- Transparent: khidkiyan jo roshni aur nazaara andar aane dein, chashme, aur dukaanon aur rasoi ke kaanch ya plastic ke dabbe, taaki andar ki cheez aur bachi maatra dikhe.
- Translucent: bathroom ki khidkiyon aur darwaazon mein frosted glass, jo roshni aane deta hai par parda rakhta hai, aur trace karne ke liye butter paper.
- Opaque: deewarein, darwaaze, parde aur dabbe, jo nazaara rokte hain aur cheezon ko chhupa kar rakhte hain.
Doosri properties ke liye padho materials ki properties. Textbook ke sawaalon ke liye dekho Chapter 6 ke NCERT solutions; poore chapter ke liye Chapter 6 ke notes.
Practice karo
-
Inme se opaque kya hai?
Jawab dekho
Jawab: (c) Lakdi ka board
-
Frosted glass hai:
Jawab dekho
Jawab: (b) translucent
-
Hawa humein ek doosre ko dekhne se nahi rokti, par lakdi ka darwaaza rokta hai, kyunki hawa ___ hai aur darwaaza ___.
Jawab dekho
Jawab: (a) transparent, opaque
-
Dukaanon mein dabbe aksar transparent kyun hote hain?
Jawab dekho
Jawab: Taaki log bina khole dekh sakein ki andar kya hai aur kitna bacha hai, jisse cheezein jaanchna aur sahi jagah rakhna bhi aasaan hota hai.
-
Kya paani transparent hai? Kya ye opaque ban sakta hai?
Jawab dekho
Jawab: Saaf paani transparent hai. Agar bahut saari mitti, syaahi ya doodh mila do, to roshni saaf paar nahi hoti, aur paani pehle translucent aur phir opaque ho jaata hai.
Students ke sawal
Transparent aur translucent mein kya farq hai?
Transparent material, jaise kaanch, ke aar-paar cheezein saaf dikhti hain; translucent material, jaise frosted glass ya butter paper, ke aar-paar dikhti hain par saaf nahi.
Opaque materials kya hote hain?
Wo materials jinke aar-paar bilkul nahi dikhta, jaise lakdi, cardboard, dhaatuein aur deewarein.
Kya hawa transparent hai?
Haan. Hawa hamare chaaron taraf hai, phir bhi hum uske aar-paar ek doosre ko saaf dekhte hain, isliye wo transparent hai.
Koi sawal atak gaya?
Photo lo, Lagnever AI step-by-step samjhayega. 7 din ka trial sirf ₹2.
Google Play se app lo Browser mein kholo
Parents ke liye: trial ke baad plan har mahine UPI ya card autopay se renew hota hai. App mein kabhi bhi cancel kar sakte hain.