Tag: space travel

Quizzes (7) Questions (83)

Questions Related to space travel

Multiple choice geography space travel space research and satellites space exploration and forms of light optical telescope

The space stations so far launched are broadly classified into two types:

  1. Mir and Skylab

  2. Apollo and Salyut

  3. Monolithic and Modular

  4. Almaz and Salyut
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The space station launched are broadly classified into two types: 

  1. Monolithic : earlier space station, Salyut and Skylab in which were constructed and launched in one piece, and then manned by a crew later. 
  2. Modular: Mir and ISS, a core unit was launched, and additional modules, generally with a specific role, were later added to that.

Multiple choice geography space travel space research and satellites space exploration and forms of light optical telescope

Which of the following is cannot be considered as the use of space stations?

  1. Space station is used to study the effects of long-duration spaceflight on the human body

  2. Space station provides a platform for greater number and length of scientific studies than it is available on other space vehicles.

  3. Space stations are used both for military and civilian purposes.

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Space stations are made to conduct experiments that needs to be done out in space. It is used to study the effects of long-duration space flight on human body. These provides a platform for greater number and length of scientific studies than it is available on other space vehicles and other military and civilian purposes.

Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

The number of wavelengths in the visible spectrum is :

  1. $4000$
  2. $6000$
  3. $2000$
  4. $inifinite$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. 
  • It ranges in wavelength from approximately 400 nanometers ($4 \times  10 ^{-7}$ m, which is violet) to 700 nm ($7 \times 10^{-7}$ m, which is red).
  • Hence wavelengths are infinite
  • Option D is the right answer
Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

Choose the correct answer from the alternatives given.
Which of the following ray are not electromagnetic waves

  1. X-rays
  2. $\gamma- $ rays
  3. $\beta -$ rays

  4. Heat rays
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cosmic rays, γ-rays, and X-rays are part of electromagnetic spectrum, while β-rays are emitted by radioactive elements. Hence β-rays is not electromagnetic waves.

Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

The length of an astronomical telescope for normal vision is _______.

  1. $-\displaystyle\frac{f _o}{f _e}$
  2. $-f _o\times f _e$
  3. $\displaystyle\frac{f _e}{f _o}$
  4. $f _o+f _e$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To get a magnified image of an object at infinity the image formed by objective lens will beat focus and if we want maximum magnification then the image formed by objective should be at focus of the eye piece.

Hence length of telescope =${ f } _{ o }+{ f } _{ e }$.
Here ${ f } _{ o }$ and ${ f } _{ e }$ are focal length of objective and eyepiece lens respectively.

Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

In which of the following instruments is final image erect?

  1. Simple microscope

  2. Compound microscope

  3. Astronomical telescope

  4. Galilean telescope
Reveal answer Fill a bubble to check yourself
A,D Correct answer
Explanation

simple microscope is placed between the optic center and the focus and the image is erect, virtual and magnified.

For compound microscope -The final image is virtual, inverted and magnified.
The final image formed by an astronomical telescope is always virtual, inverted.
Galilean telescope is to produce a virtual, erect image.



Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

In which of the following instruments is the final image inverted?

  1. Projector

  2. Camera

  3. Microscope

  4. Telescope
Reveal answer Fill a bubble to check yourself
C,D Correct answer
Explanation
For compound microscope -The final image is virtual, inverted and magnified.
The final image formed by an astronomical telescope is always virtual, inverted.
Camera and projector always form erect image.