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Let r1 and r2 cm be the radii of the base of the cylinder and cone respectively. Then, r1 = r2 = 8 cm Let h1 and h2 cm be the heights of the cylinder and
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(i) [Ni(CN)4]2–: In  case the valence shell electronic configuration of ground state Ni atom is 3d8 4s2.  There is Ni2+ ion for w

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The galvanic cell of the given reaction is represented as
Fe2+(aq) | Fe3+(aq) || Ag+ | Ag(s)
The formula of standard cell pot
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For she survival of the world, the understanding about Antarctica is very important. It was a huge super continent called ‘Gondwana” which survived for abo
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The area of the region bounded by the circle, x2+y2=16, x=√3y, and the x-axis is the area OAB.
Solving x2+y2=16 and x=√3y, we have
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A metal will show photoelectric emission in below situation:E ≥ work functionNow according to the relation below:E = hv = hcλ
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Given,Resistance of electric heater, R = 8 ΩCurrent drawn by the heater, I= 15 ATime, t = 2 hThe rate at which heat is developed in the heater is equivale
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In ∆OAB and ∆OCD,
OA = OC | Radii of a circle
OB = OD | Radii of a circle
∠AOB = ∠COD
| Vertically Opposite Angles
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हीरा और मोती शोषण के विरुद्ध हैं वे हर शोषण के विरुद्ध आवाज़ उठाते रहे। हालाँकि इसके लिए उन्हें प्रताड़ना सहनी पड़ी तथा बहुत कष्टो का सामना भी करना पड़ा। उन्होंने झूरी के साले गया का विरोध किया तो सूखी रोटियाँ और डंडे खाए फिर काँजीहौस में अन्याय का विरोध किया
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The emf of an electrode when dipped in different concentrated solution is given by Nernst equation.ECu2+/Cu = E°Cu2+/Cu+0.0592×log Cu2+
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(i) The concept fails to recognise the relative strength of acids and bases.(ii) Formation of a coordination compound is a slow process but acid-base reactions
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Find CBSE, ICSE State Boards Textbook Solutions of Class 8 to 12 of all subjects. Read NCERT Textbooks Questions and Answers & Find Previous year solved papers.
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The following activity can prove that chlorophyll is essential for photosynthesis.
Activity:
1. Take a potted plant with variegated leaves (leaves partly gree
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The labelled diagram of a refracting telescope is as shown below:
Magnification power is defined as the ratio of the angle () subtended by the final image on t
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