206: Which of the following types of light are strongly absorbed by plants?
(a) Blue and red
(b) Yellow and violet
(c) Violet and orange
(d) Indigo and yellow
207: The resolving power of an electron microscope is much higher than that of an ordinary light microscope because resolving power increases:
(a) If wavelength is short and wavelength of electron beam can be made quite small by accelerating the electrons.
(b) If wavelength is short and light given by electrons has very short wavelength.
(c) If magnification is high and electronic lens provides much higher magnification.
(d) If magnification is high and the electron microscope has a battery of lenses to provide high magnification.
208: Out of the following the oldest dynasty is:
(a) Mauryas
(b) Nandas
(c) Pallavas
(d) Guptas
209: The 73rd Constitution Amendment Act, 1992 refers to the
(a) generation of gainful employment for the unemployed and the underemployed men and women in rural area
(b) generation of employment for the able bodied adults who are in need and desirous of work during the lean agricultural season
(c) laying the foundation for strong and vibrant Panchayati Raj Institutions in the country
(d) guarantee of right to life, liberty and security of person, equality before law and equal protection without discrimination
210: The motive behind Shahjahan's Balkh campaign was to
(a) secure a friendly ruler in Balkh and Badakshan which bordered Kabul
(b) conquer Samarqand and Farghana, the Mughal homelands
(c) fix the Mughal frontier on the scientific line, the Amu Daria
(d) expand the Mughal Empire beyond the sub-continent