282050 A ray of light is incident at $50^{\circ}$ on the middle of one of the two mirrors arranged at an angle of $60^{\circ}$ between them. The ray then touches the second mirror, gets reflected back to the first mirror, making an angle of incidence

282051 Assertion: A point object is placed at a distance of $26 \mathrm{~cm}$ from a convex mirror of focal length 26 $\mathrm{cm}$. The image will not form at infinity.
Reason : For above given system the equation $\frac{1}{\mathrm{u}}+\frac{1}{\mathrm{v}}=\frac{1}{\mathrm{f}}$ gives $\mathrm{v}=\infty$.

282052 Assertion: The formula connecting $\mathrm{u}, \mathrm{v}$ and $\mathrm{f}$ for a spherical mirrors whose sizes are very small compared to their radii of curvature.
Reason: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surface.

282053 In an experiment to find the focal length of a concave mirror, a graph is drawn between the magnitudes of $u$ and $v$. The graph looks like.

(a)
(b)
(c)
(d)
Ans: c
Exp: C:
As we know, in concave mirror,
When object placed at infinity then image will form at focus while when object placed at focus then image will form at infinity.

282050 A ray of light is incident at $50^{\circ}$ on the middle of one of the two mirrors arranged at an angle of $60^{\circ}$ between them. The ray then touches the second mirror, gets reflected back to the first mirror, making an angle of incidence

282051 Assertion: A point object is placed at a distance of $26 \mathrm{~cm}$ from a convex mirror of focal length 26 $\mathrm{cm}$. The image will not form at infinity.
Reason : For above given system the equation $\frac{1}{\mathrm{u}}+\frac{1}{\mathrm{v}}=\frac{1}{\mathrm{f}}$ gives $\mathrm{v}=\infty$.

282052 Assertion: The formula connecting $\mathrm{u}, \mathrm{v}$ and $\mathrm{f}$ for a spherical mirrors whose sizes are very small compared to their radii of curvature.
Reason: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surface.

282053 In an experiment to find the focal length of a concave mirror, a graph is drawn between the magnitudes of $u$ and $v$. The graph looks like.

(a)
(b)
(c)
(d)
Ans: c
Exp: C:
As we know, in concave mirror,
When object placed at infinity then image will form at focus while when object placed at focus then image will form at infinity.

282050 A ray of light is incident at $50^{\circ}$ on the middle of one of the two mirrors arranged at an angle of $60^{\circ}$ between them. The ray then touches the second mirror, gets reflected back to the first mirror, making an angle of incidence

282051 Assertion: A point object is placed at a distance of $26 \mathrm{~cm}$ from a convex mirror of focal length 26 $\mathrm{cm}$. The image will not form at infinity.
Reason : For above given system the equation $\frac{1}{\mathrm{u}}+\frac{1}{\mathrm{v}}=\frac{1}{\mathrm{f}}$ gives $\mathrm{v}=\infty$.

282052 Assertion: The formula connecting $\mathrm{u}, \mathrm{v}$ and $\mathrm{f}$ for a spherical mirrors whose sizes are very small compared to their radii of curvature.
Reason: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surface.

282053 In an experiment to find the focal length of a concave mirror, a graph is drawn between the magnitudes of $u$ and $v$. The graph looks like.

(a)
(b)
(c)
(d)
Ans: c
Exp: C:
As we know, in concave mirror,
When object placed at infinity then image will form at focus while when object placed at focus then image will form at infinity.

282050 A ray of light is incident at $50^{\circ}$ on the middle of one of the two mirrors arranged at an angle of $60^{\circ}$ between them. The ray then touches the second mirror, gets reflected back to the first mirror, making an angle of incidence

282051 Assertion: A point object is placed at a distance of $26 \mathrm{~cm}$ from a convex mirror of focal length 26 $\mathrm{cm}$. The image will not form at infinity.
Reason : For above given system the equation $\frac{1}{\mathrm{u}}+\frac{1}{\mathrm{v}}=\frac{1}{\mathrm{f}}$ gives $\mathrm{v}=\infty$.

282052 Assertion: The formula connecting $\mathrm{u}, \mathrm{v}$ and $\mathrm{f}$ for a spherical mirrors whose sizes are very small compared to their radii of curvature.
Reason: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surface.

282053 In an experiment to find the focal length of a concave mirror, a graph is drawn between the magnitudes of $u$ and $v$. The graph looks like.

(a)
(b)
(c)
(d)
Ans: c
Exp: C:
As we know, in concave mirror,
When object placed at infinity then image will form at focus while when object placed at focus then image will form at infinity.