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WorksheetsGRB detectors
Total questions: 12
Worksheet time: 12mins
Which of the following GRB detectors cannot detect a photon of energy 17328.35eV?
INTEGRAL
FERMI
CGRO
SWIFT
Which of the following processes are involved in measuring the energy of a gamma ray photons?
Compton Scattering
Photoelectric effect
Pair Production
None of the above
What is the wavelength coverage of GROND observatory?
0.21 - 0.45 micrometers
0.45 - 2.1 micrometers
2.1 - 4.5 micrometers
All of the above
What was the primary objective of the Fermi Gamma Ray Telescope?
Detect Pulsars
Detect Supernovae
Detect GRBs
All of the above
The GROND Observatory is known to measure the afterglow of GRBs in ……... colours simultaneously.
2
5
7
9
Which of the following Observatory uses photometric redshift for measuring the distance to GRBs from the measured colours after the optical afterglow?
Large Area Telescope
Swift Observatory
GROND Observatory
INTEGRAL Observatory
Which subsystem in Large Area Telescope of Fermi Gamma Ray Telescope helps to measure the energy of incoming particles?
Tracker
Anti-coincidence detector
Data Acquisition System
Calorimeter
Which of these following wavelengths the Neil Gehrels Swift observatory cannot observe?
IR
Gamma rays
Visible
All of the above wavelengths can be observed
No of layers in the tracker subsystem of LAT is
28
216
24
23
Apart from detecting gamma rays, four subsystems of LAT are responsible for
Rejecting microwaves
Detecting UV rays
Detecting cosmic rays
None of the above
How long does the fermi gamma ray telescope take to cover the complete sky?
24 hours
12 hours
6 hours
3 hours
Where could we expect short GRBs from?
Elliptical galaxies
Spiral galaxies
Both A and B
None of the above
