Which of the following harmful rays comes out from colour TV?

A Gama ray
B Beta ray
C Cosmic ray
D Alpha ray

Correct Answer: Gama ray

রঙিন টেলিভিশন থেকে ক্ষতিকর গামা রশ্মি নির্গত হয় । ক্যান্সার টিউমার প্রভূতি রোগ নিরাময়ে গামা রশ্মি ব্যবহৃত হয় । মহাশূন্য থেকে পৃথিবীতে আগত রশ্মি হলো কসমিক রশ্মি, তেজস্ক্রিয় পর্দাথ থেকে আলফা, বিটা ও গামা রশ্মি নির্গত হয় ।
Bissoy MCQ
#সাধারণ জ্ঞান #National Bank Ltd #National Bank Ltd - Probationary Officer - 22.03.2013

Related Questions

______ but also it filters out harmful sun rays.
A The atmosphere given us air to breathe
B Not only the atmosphere given us air to breathe
C The atmosphere which gives us air to breathe
D Not only does the atmosphere give us air to breathe
Which layer protects earth from harmful rays of the Sun?
A Ionosphere
B Ozone layer
C Troposphere
D Magnetosphere
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 golden rays of the setting sun fall _____the water and tings them with goleden colour.
A of
B from
C in
D on
Which colour is the complementary colour of yellow ?
A Blue
B Green
C Orange
D Red
If Dust is called Air, Air is called Fire, Fire is called Water, Water is called Colour, Colour is called Rain and Rain is called Dust, where do Fish live ?
A Dust
B Fire
C Colour
D Water
In raster-scan colour monitors, colour can be intensified by:
A grouping the phosphor dots in a circular pattern
B having each electron gun controlled by a composite signal
C using an in-line gun arrangement with a solid metal mesh
D having each electron gun controlled by separate signal
E None of the above
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A 2
B 3
C 4
D 3.5
E None of these
The average age of 12 children is 15 years. If another child comes the average age comes to 13. What is the age of the new child?
A 11 years
B 7 years
C 9 years
D None
The average age of 12 children is 15 years. If another child comes the averages age comes to 13. What is the age new child?
A 13.85 years
B 7 years
C 9 years
D 5 years

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