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  • Question
  • Scientists from this university demonstrated a device that generates electricity in an infrared photodiode from the coldness of the universe.


  • Options
  • A. University of Oxford
  • B. University of California
  • C. Stanford University
  • D. Harvard University

  • Correct Answer
  • Stanford University 

    Explanation
    Scientists from Stanford University, Shanhui Fan along with Masashi Ono have demonstrated for the first time that it is possible to produce a measurable amount of electricity in an infrared photodiode from the coldness of the universe.The infrared semiconductor uses the temperature difference between Space and Earth to produce the electricity. The study was published in a journal named Applied Physics Letters. The new device has generated about 64 nanowatts per square meter. According to the theoretical calculations, the device can generate almost 4 watts per square meter, roughly one million times what practically generated. In the new technology, the negative illumination effect allows electrical energy to be harvested as heat leaves a surface.

  • Miscellaneous problems


    Search Results


    • 1. Which of the following initiation of the Rotary Club of Madras North provides sanitary napkins to the students?

    • Options
    • A. Project Suvidha
    • B. Project Puthuyugam
    • C. Project Sangini
    • D. Project Kannamma
    • Discuss
    • 2. India and Japan's ISE Foods signed MoU to improve __________.

    • Options
    • A. Subsistence farms
    • B. Pastoral farms
    • C. Arable farms
    • D. Poultry farms
    • Discuss
    • 3. Which magazines recently released its cover featuring image of PM Narendra Modi with headline 'India's Divider in Chief'?

    • Options
    • A. Cosmopolitan
    • B. Bloomberg
    • C. Forbes
    • D. TIME
    • Discuss
    • 4. Name the cyclone that has hit the Indian States of Odisha and West Bengal recently.

    • Options
    • A. Cyclone Hudhud
    • B. Cyclone Gaja
    • C. Cyclone Phailin
    • D. Cyclone Fani
    • Discuss
    • 5. Bank of Maharashtra and __________ has partnered for MSME bill discounting.

    • Options
    • A. TechBargains
    • B. Micro Center
    • C. Trade Receivables Discounting System (TReDS)
    • D. Slickdeals
    • Discuss
    • 6. Which of the following railway station won the title of world's longest railway station name by an alphabet?

    • Options
    • A. Dr. M.G. Ramachandran Central Railway
    • B. Venkatanarasimharajuvaripeta railway station
    • C. Llanfairpwll railway station
    • D. Krantivira Sangolli Rayanna Bengaluru City station
    • Discuss
    • 7. Which Chemical can be used to treat neurological diseases, as per the study published in the journal "Proceedings of the National Academy of Sciences (PNAS)"?

    • Options
    • A. Serotonin
    • B. Thyroxine
    • C. Neurotransmitter
    • D. Adrenaline
    • Discuss
    • 8. Name the last captive white tiger, that died in the Sanjay Gandhi National Park (SGNP) in Borivali, Mumbai.

    • Options
    • A. Sidharth
    • B. Renuk
    • C. Bajirao
    • D. Avni
    • Discuss
    • 9. Who will organise WCO Asia Pacific region meeting in Kerala?

    • Options
    • A. CBIC
    • B. Income Tax Department
    • C. CESTAT
    • D. IRDA
    • Discuss
    • 10. IIT Madras team develops easy OCR system for reading documents in Bharati script containing with how many Indian languges?

    • Options
    • A. 5
    • B. 9
    • C. 13
    • D. 11
    • Discuss


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