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ECAT Pre General Science Physics Chapter 20 Atomic Spectra Online Test
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 20 Atomic Spectra Online Test
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Question # 1
Static electricity is produced by the transfer of:
Question # 2
Balmer series lies in that region of electromagnetic wave spectrum which is called:
Question # 3
The range of wavelengths of colurs in the visible colours is
Question # 4
Selenium is:
Question # 5
Graph of Black body radiation is example of
Question # 6
Photons must have energy equal to
Question # 7
The photocopying process is called:
Question # 8
An electron of the hydrogen atom in the second orbit is called its:
Question # 9
Balmer series was identified in:
Question # 10
An compared to solid matter, a crack or an air bubble allows:
Question # 11
The lasing or active medium in He-Ne laser discharge tube is:
Question # 12
The natural arrangement of colours in the spectrum of white light spectrum is
Question # 13
X-ray are also known as
Question # 14
Consider a photon of continuous X-ray and a photon of characteristics X-ray of same wavelength. Which of the following is/are different for the two photons
Question # 15
Spectrum represents the number of component colours present in certain light in terms of:
Question # 16
If the distance between two charges is doubled,the force between them will become:
Question # 17
Tick the series which lie/s in. the infra-red region.
Question # 18
Laser is a beam of:
Question # 19
Ultraviolet region lies in ______ series
Question # 20
X-rays produced in a tube operating at 105V. The speed of X-rays produced is
Question # 21
X-rays can penetrate in a solid matte through a distance of several:
Question # 22
The value of the metastable state for Neon is
Question # 23
Gaussian surface is always:
Question # 24
By CAT scans, we can detect the density difference of the order of:
Question # 25
The inkjet printer eject a thin stream of:
Question # 26
In helium Neon Laser Neon = 15% and Helium = 85% used. The lasing gas this unit is
Question # 27
The minimum wavelength of X-rays produced of 1KV potential difference is applied across the anode and cathode of the tube is
Question # 28
The life time of metastable state is equal to
Question # 29
The electric field lines start from:
Question # 30
Coulomb multiplied by volt by volt gives the unit called:
Matric Part 2/10th Class English Chapter 1 MCQ Test With Answer for Chapter 1 Hazrat Muhammad (S.A.W) an Embodiment of Justice
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Biology Chapter 1 - Answers Mode
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.
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