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पियाजे के संज्ञानात्मक विकास सिद्धान्त के अनुसार संवेदी-क्रियात्मक अवस्था होती है

The actual efficiency of a solar power plant is lower than its theoretical efficiency. Which of the following can be reasons for this? I) Recombination of electrons and holes II) Internal resistance of the cell सौर ऊर्जा संयंत्र की वास्तविक दक्षता इसके सैद्धांतिक दक्षता से कम होता है। इसके लिए निम्नलिखित में से कौन सा कारण हो सकता है? (I) इलेक्ट्रान और होल्स का पुनर्संयोजन (II) सेल का आंतरिक प्रतिरोध

Where is the Central Potato Research Institute of India located?

Akshat completes his journey in 20 hours. He covers half the distance at 57 km/h and the rest at 95 km/h. What is the length of the journey (in Km)? अक्षत अपनी यात्रा 20 घंटे में पूरी करता है। वह आधी दूरी 57 km/h की चाल से और शेष दूरी 95 km/h की चाल से तय करता है। यात्रा की कुल दूरी (km/h में) ज्ञात कीजिए।

Six bells commence tolling together at 7 : 59 am. They toll at intervals of 3, 6, 9, 12 and 15 seconds respectively. How many times will they toll together till 8 : 16 am ? (excluding the toll at 7 : 59 am)

A person covers 20 km with a speed of 12 km/hr and next 30 km with a speed of 20 km/h. What is his average speed for the whole journey in km/h (correct to one decimal place)?

शकुन्तला से `भतुर्बहुमता भव’ यह वाक्य किसने कहा है?

The physical quantity having a unit of volt/ampere is ––––––– .

Which statements are true according to the passage? A. The statements of Liberty was a gift from the French to the Americans. B. The statue represents not only the majestic Greek Goddess of the past, but also the working men and woman of the present. C. Americans gave large donations to build statue. D. Libertas was the Greek goddess of freedom. E. For several years, the Statue of Liberty was used by sailors as a lighthouse.