Practice Physics questions - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) Which waves cannot be transmitted through vacuum?
(a)
(b)
(c)
(d)
Q-2) The minimum distance of clear vision for a normal healthy eye of human being is supposed to be
(a)
(b)
(c)
(d)
Q-3) Consider the following statements. - A widely used musical scale called diatomic scale has seven frequencies.
- The frequency of the tone Sa is 256 Hz and that of Ni is 512 Hz.
Which of the statements given above is/are correct?
(a)
(b)
(c)
(d)
Q-4) A biotechnique in which ultrasonic sound is used
(a)
(b)
(c)
(d)
Q-5) Human eye is most sensitive to visible light of the wavelength
(a)
(b)
(c)
(d)
Q-6) ‘Pitch’ is a characteristic of sound that depends upon its
(a)
(b)
(c)
(d)
Q-7) A ray of light travels from medium I to medium II. The figure given shows the variation of sin of angles of incidence (sin i) in medium I with sin of angle of refraction (sin r) in medium II.
Consider the following statements
- Speed of light in medium I > Speed of light in medium II.
- Speed of light in medium I < Speed of light in medium II.
- Light travels from denser medium to rarer medium.
Which of the statements given above is/are correct?
(a)
(b)
(c)
(d)
Explanation:
Speed of light is more in rarer medium as compared to denser medium.
Q-8) Butter paper is an example for ............. object.
(a)
(b)
(c)
(d)
Q-9) Which type of electromagnetic radiation is used in the remote control of a television?
(a)
(b)
(c)
(d)
Q-10) To keep drinks at the same temperature for quite sometime, the walls of thermos bottle are coated with
(a)
(b)
(c)
(d)