Related Questions

Which layer protects earth from harmful rays of the Sun?
A Ionosphere
B Ozone layer
C Troposphere
D Magnetosphere
Which of the following harmful rays comes out from colour TV?
A Gama ray
B Beta ray
C Cosmic ray
D Alpha ray
Cartridge filters are termed as 'edge' filters, because of the fact that the
A Disks have very sharp edge
B Solids are not deposited at the edge of the disk
C Bulk of the solids are removed at the periphery of the disks
D None of these
124λ তরঙ্গদৈর্ঘ্যের এক রঙা এক্সরে একটি কার্বণ ব্লক দ্বারা বিক্ষিপ্ত হয়। 180° তে এক্সবের বিক্ষিপ্ত বিকিরণের তরঙ্গদৈর্ঘ্যের মান নির্ণয় কর।(A monochromatic X-rays of wavelength 0.124λ is scattered by a carbon block. Find the wavelength of X-rays scattered through 180°) 
A 0.0484 λ
B 0.1724 λ
C 0.0756 λ
D 0.0242 λ
E 0.0968 λ
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
A helium
B ozone
C oxygen
D methane
Scientists have long known that soot particles facilitate melting darkening snow and ice, limiting its ability to reflect the sun's rays.
A of
B in
C with
D by
The nature of electricity being produced using sun rays is:
A AC
B DC
C Both AC and DC
D None
The sun's intense rays 'distorted' the image on the horizon .
A reflected
B melted
C altered
D disrupted
The tree tops on the distant horizon are all red ____ the rays of the setting sun.
A on
B to
C from
D with
The golden rays of the setting sun fall _____the water and tings them with goleden colour.
A of
B from
C in
D on

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