send mail to support@abhimanu.com mentioning your email id and mobileno registered with us! if details not recieved
Resend Opt after 60 Sec.
By Loging in you agree to Terms of Services and Privacy Policy
Claim your free MCQ
Please specify
Please verify your mobile number
Login not allowed, Please logout from existing browser
Please update your name
Subscribe to Notifications
Stay updated with the latest Current affairs and other important updates regarding video Lectures, Test Schedules, live sessions etc..
Your Free user account at abhipedia has been created.
Remember, success is a journey, not a destination. Stay motivated and keep moving forward!
Refer & Earn
Enquire Now
My Abhipedia Earning
Kindly Login to view your earning
Support
Which among the following statement is/are correct about Liquid-Mirror Telescope:
1. Liquid-Mirror Telescope is a novel instrument that employs a 4-meter-diameter rotating mirror made up of a thin film of liquid mercury to collect and focus light.
2. A thin transparent film of mylar protects the mercury from wind.
1 only
2 only
Both1 and 2
Neither 1 nor 2
Liquid-Mirror Telescope is a novel instrument that employs a 4-meter-diameter rotating mirror made up of a thin film of liquid mercury to collect and focus light. Scientists spun a pool of mercury which is a reflective liquid, so that the surface curved into a parabolic shape which is ideal for focusing light. A thin transparent film of mylar protects the mercury from wind. The reflected light passes through a sophisticated multi-lens optical corrector that produces sharp images over a wide field of view. A large-format electronic camera located at the focus records the images. The rotation of the earth causes the images to drift across the camera, but this motion is compensated electronically by the camera. This mode of operation increases observing efficiency and makes the telescope particularly sensitive to faint and diffuse objects.
Report error
Access to prime resources