Optical Instrument and Human eye
« Previous Topic: Dispersion, Cauchy's Theorem, Angular Dispersion, Dispersion Power Last Topic in »
Ray Optics

282896 The astronomical telescope consist of objective and eyepiece. The focal length of the objective is-

1 \(f_e=f_o\)
2 \(\mathrm{f}_0>\mathrm{f}_{\mathrm{e}}\)
3 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}}\)
4 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}} / 5\)
BCECE-2018
Ray Optics

282897 In compound microscope, the focal length and aperture of the objective used is respectively

1 large and large
2 large and small
3 short and large
4 short and small
MHT-CET 2018
Ray Optics

282898 If focal length of human eye is \(2 \mathrm{~cm}\), then find the focal length of contact lens. Such that a combined focus of \(2.5 \mathrm{~cm}\) is obtained after using contact lens.

1 \(-30 \mathrm{~cm}\)
2 \(-20 \mathrm{~cm}\)
3 \(-10 \mathrm{~cm}\)
4 \(-40 \mathrm{~cm}\)
AIIMS-27.05.2018(M)
Ray Optics

282899 Find the distance of image from convex lens.

1 \(24 \mathrm{~cm}\)
2 \(20 \mathrm{~cm}\)
3 \(4 \mathrm{~cm}\)
4 None of these
AIIMS-26.05.2018(E)
For More Updates join with Us
Ray Optics

282896 The astronomical telescope consist of objective and eyepiece. The focal length of the objective is-

1 \(f_e=f_o\)
2 \(\mathrm{f}_0>\mathrm{f}_{\mathrm{e}}\)
3 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}}\)
4 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}} / 5\)
BCECE-2018
Ray Optics

282897 In compound microscope, the focal length and aperture of the objective used is respectively

1 large and large
2 large and small
3 short and large
4 short and small
MHT-CET 2018
Ray Optics

282898 If focal length of human eye is \(2 \mathrm{~cm}\), then find the focal length of contact lens. Such that a combined focus of \(2.5 \mathrm{~cm}\) is obtained after using contact lens.

1 \(-30 \mathrm{~cm}\)
2 \(-20 \mathrm{~cm}\)
3 \(-10 \mathrm{~cm}\)
4 \(-40 \mathrm{~cm}\)
AIIMS-27.05.2018(M)
Ray Optics

282899 Find the distance of image from convex lens.

1 \(24 \mathrm{~cm}\)
2 \(20 \mathrm{~cm}\)
3 \(4 \mathrm{~cm}\)
4 None of these
AIIMS-26.05.2018(E)
NEET DIGITAL LIBRARY
Ray Optics

282896 The astronomical telescope consist of objective and eyepiece. The focal length of the objective is-

1 \(f_e=f_o\)
2 \(\mathrm{f}_0>\mathrm{f}_{\mathrm{e}}\)
3 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}}\)
4 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}} / 5\)
BCECE-2018
Ray Optics

282897 In compound microscope, the focal length and aperture of the objective used is respectively

1 large and large
2 large and small
3 short and large
4 short and small
MHT-CET 2018
Ray Optics

282898 If focal length of human eye is \(2 \mathrm{~cm}\), then find the focal length of contact lens. Such that a combined focus of \(2.5 \mathrm{~cm}\) is obtained after using contact lens.

1 \(-30 \mathrm{~cm}\)
2 \(-20 \mathrm{~cm}\)
3 \(-10 \mathrm{~cm}\)
4 \(-40 \mathrm{~cm}\)
AIIMS-27.05.2018(M)
Ray Optics

282899 Find the distance of image from convex lens.

1 \(24 \mathrm{~cm}\)
2 \(20 \mathrm{~cm}\)
3 \(4 \mathrm{~cm}\)
4 None of these
AIIMS-26.05.2018(E)
Join With Us for More Updates
Ray Optics

282896 The astronomical telescope consist of objective and eyepiece. The focal length of the objective is-

1 \(f_e=f_o\)
2 \(\mathrm{f}_0>\mathrm{f}_{\mathrm{e}}\)
3 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}}\)
4 \(\mathrm{f}_{\mathrm{o}}<\mathrm{f}_{\mathrm{e}} / 5\)
BCECE-2018
Ray Optics

282897 In compound microscope, the focal length and aperture of the objective used is respectively

1 large and large
2 large and small
3 short and large
4 short and small
MHT-CET 2018
Ray Optics

282898 If focal length of human eye is \(2 \mathrm{~cm}\), then find the focal length of contact lens. Such that a combined focus of \(2.5 \mathrm{~cm}\) is obtained after using contact lens.

1 \(-30 \mathrm{~cm}\)
2 \(-20 \mathrm{~cm}\)
3 \(-10 \mathrm{~cm}\)
4 \(-40 \mathrm{~cm}\)
AIIMS-27.05.2018(M)
Ray Optics

282899 Find the distance of image from convex lens.

1 \(24 \mathrm{~cm}\)
2 \(20 \mathrm{~cm}\)
3 \(4 \mathrm{~cm}\)
4 None of these
AIIMS-26.05.2018(E)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here