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[Explain] Draw a labelled ray diagram of a compound microscope and explain its working
(Image 1 to be added soon)
A tiny object AB to be magnified is placed in front of the objective lens just beyond its principal focus fo’. In this case, the objective lens O of the compound microscope forms a real, inverted and enlarged image A’B’ of the object.
Now A’B’ acts as an object for the eyepiece E, whose position is adjusted so that A’B’ lies between optical centre C2 and the focus fe’ of eyepiece. Now the eyepiece forms a final virtual, inverted and highly magnified image A”B”. this final image A”B” is seen by our eye hold close to eyepiece, after adjusting the final image A”B” at the least distance of distinct vision of 25 cm from the eye.
[Explain] What is sublimation ?
[Explain] Is money plant a climber or a creeper ?
Money plant is a climber
Climber is a plant which grows by taking support of another plant or any vertical surface. It rolls on the support and takes mechanical support to grow vertically
Creeper on the other hand is a plant which extends horizontally on the ground and does not grow much vertically as its stem is weak.
[Explain] What is the color of ferrous sulphate crystals? How does this color change after heating? Name the products formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this type of change.
The color of ferrous sulphate crystals is green.
Ferrous sulphate crystals contain water molecules (FeSO4. 7H2O). On heating, ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO4) is formed. So their colour changes from light green to white.
On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). So, the gas emitted smells like burning sulphur.
In this reaction, the single reactant FeSO4 decomposes to form three different products. So, the reaction is a decomposition reaction.
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India has a rich cultural heritage. It includes a large number of things such as art and architecture, literature, language, festivals, and dance and music. The dance forms that we get to see across the land are mainly of two types- classical and folk dance. Folk dances or tribal dances are the types of dance which are usually performed by common people on various occasions like the beginning of a new season, birth of a child, a wedding, harvests, etc to express joy. They form a part of an art form called folk art that is commonly practised by a particular community. The origin of different folk cultures cannot be derived comprehensively but the traditions have been preserved down the ages. Each form of folk dance comprises of unique styles and movements and represents the culture and tradition of the particular state. Very colourful jewellery and unique costumes are worn to perform these dances. States and their folk dances Every state has its own folk dances- sometimes just one type, sometimes more than one. The folk dances of a particular state usually depict some special traditions of that particular state. The names of folk dances of various states of India are as follows: Andhra Pradesh Kuchipudi, Vilasini, Natyam, Andhra Natyam, Bhamakalpam, Veeranatyam, Dappu, Tappeta Gullu. Assam Bihu, Bichhua, Natpuja, Maharas, Kaligopal, Bagurumba, Naga dance, Khel Gopal, Tabal Chongli, Canoe and Jhumura Hobjanai are the folk dances of various tribes of Assam. Bihar Jata-Jatin, Bakho-Bakhain, Panwariya, Sama Chawa, Bidesia. Gujarat Garba, Dandiya Ras, Tippani Juriun, Bhavai. Haryana Jhumar, Phag, Daph, Dhamal, Loor, Gugga, Khor, and Gagor. Himachal Pradesh Jhora, Jhali, Chharhi, Dhaman, Chhapeli, Mahasu, Nati and Dangi. Jammu and Kashmir Rauf, Hikat, Mandjas, Kud Dandi Nach and Damali. Karnataka Yakshagan, Huttari, Suggi, Kuntha, Karga and Lambi. Kerala Ottam Thulal, Mohiniattam and Kaikottikali. Maharashtra Lavni, Nakata, Koli, Lezim, Gafa and Dahikala Dasavtar or Bohada. Odisha Savari, Ghumara, Painka, Munari and Chhau. West Bengal Kathi, Gambhira, Dhali, Jatra, Baul, Marasia, Mahal, Chhau, and Santhali, etc. Punjab Bhangra, Giddha, Daff, Daman, Bhand, and Naqual. Rajasthan Ghumar, Chakri, Ganagor, Jhulan, Leela, Jhuma, Susini, Ghapal and Kalbeliya. Tamil Nadu Kumi, Kolattam and Kavadi. Uttar Pradesh Nautanki, Raslila, Kajri, Jhora, Chappeli and Jaita. Uttarakhand Garhwali, Kumayuni, Kajari, Jhora, Raslila and Chappeli. Goa Tarangamel, Koli, Dekhni, Fugdi, Shigmo, Ghode, Samayi nrutya, Ranmale, Gonph and Tonnya mell. Madhya Pradesh Jawara, Matki, Aada, Khada Nach, Phulpati, Grida Dance, Selalarki, Selebhadoni and Maanch. Jharkhand Alkap, Karma Munda, Agni, Jhumar, Hunta Dance, Sarhul, Barao, Jhitka, Ghora Naach and Domkach. Arunachal Pradesh Chalo, Buiya, Wancho, Pasi, Popir, Kongki, Ponung and Bardo Chham. Manipur Thanh Ta, Dol Cholam, Lai Haraoba, Pung Cholom, Khmaba Thaibi, Nupa Dance, Raslila, and Lhou Sha. Meghalaya Mynsiem, Ka Shad Suk, Nongkrem and Laho. Mizoram Khuallam, Cheraw Dance, Chailam, Sawlakin, Chawnglaizawn, Sarlamkai/Solakia and Tlaglam. Nagaland Bamboo dance, Rangma, Zeliang, Nsuirolians, Gethinglim, Temangnetin, Hetaleulee. Tripura- Hojagiri Sikkim Chu Faat Dance, Sikmari, Singhi Chaam or the snow Lion Dance, Tashi Yangku Dance, Khukuri Naach, Chutkey Naach and Maruni Dance. Lakshadweep Lava, Kolkali and Parichakali are the dance forms on the island. Apart from the above mentioned names, there are many more folk dances in all these states. They represent the vibrant cultures of various tribes living there. Our folk dances are not only famous in the country but also acclaimed internationally. [Explain] Folk Dances of Different States of India