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1.物距像距法测凸透镜焦距 | ||
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(1)f$<$u$<$2f 成倒立放大的实像 | ||
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| 光源/mm | 光屏/mm | 凸透镜1/mm | 凸透镜2/mm | 均值/mm | | ||
| ------- | ------- | ---------- | ---------- | ------- | | ||
{%for ei in EXPER_1 |%} | ||
{% for i in ei-%} | ||
{% if loop.index ==1 %} | ||
%% i %% | ||
{% else %} | ||
| %% i %% | ||
{% endif %} | ||
{% endfor %} | ||
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{% endfor %} | ||
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$u=|x_凸-x_{光源}|-\delta$ | ||
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${u}_1 = %% U_Convex[0][0] %% mm$ | ||
${u}_2 = %% U_Convex[0][1] %% mm$ | ||
${u}_3 = %% U_Convex[0][2] %% mm$ | ||
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$v=|x_屏-x_凸|$ | ||
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${v}_1 = %% V_Convex[0][0] %% mm$ | ||
${v}_2 = %% V_Convex[0][1] %% mm$ | ||
${v}_3 = %% V_Convex[0][2] %% mm$ | ||
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$$\because f = \displaystyle\frac{uv}{u+v}$$ | ||
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$\therefore {f}_1 = \displaystyle\frac{{u}_1{v}_1}{{u}_1+{v}_1} = %% F_Convex[0][0] %% mm$ ${f}_2 = %% F_Convex[0][1] %% mm$ $ {f}_3 = %% F_Convex[0][2] %% mm$ | ||
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$$\therefore {\bar{f}}_1 = \displaystyle\frac{{f}_1+{f}_2+{f}_3}{3} = %% F_Convex[0][3] %% mm$$ | ||
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(2)u=2f 成倒立等大的实像 | ||
| 光源/mm | 光屏/mm | 凸透镜1/mm | 凸透镜2/mm | 均值/mm | | ||
| ------- | ------- | ---------- | ---------- | ------- | | ||
{%for ei in EXPER_2 |%} | ||
{% for i in ei-%} | ||
{% if loop.index ==1 %} | ||
%% i %% | ||
{% else %} | ||
| %% i %% | ||
{% endif %} | ||
{% endfor %} | ||
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{% endfor %} | ||
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$u=|x_凸-x_{光源}|-\delta$ | ||
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${u}_1 = %% U_Convex[0][0] %% mm$ | ||
${u}_2 = %% U_Convex[0][1] %% mm$ | ||
${u}_3 = %% U_Convex[0][2] %% mm$ | ||
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$v=|x_屏-x_凸|$ | ||
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${v}_1 = %% V_Convex[0][0] %% mm$ | ||
${v}_2 = %% V_Convex[0][1] %% mm$ | ||
${v}_3 = %% V_Convex[0][2] %% mm$ | ||
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$$\because f = \displaystyle\frac{uv}{u+v}$$ | ||
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$\therefore {f}_1 = \displaystyle\frac{{u}_1{v}_1}{{u}_1+{v}_1} = %% F_Convex[0][0] %% mm$ ${f}_2 = %% F_Convex[0][1] %% mm$ $ {f}_3 = %% F_Convex[0][2] %% mm$ | ||
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$$\therefore {\bar{f}}_2 = \displaystyle\frac{{f}_1+{f}_2+{f}_3}{3} = %% F_Convex[0][3] %% mm$$ | ||
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(3)u $>$ 2f 成倒立缩小的实像 | ||
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| 光源/mm | 光屏/mm | 凸透镜1/mm | 凸透镜2/mm | 均值/mm | | ||
| ------- | ------- | ---------- | ---------- | ------- | | ||
{%for ei in EXPER_3 |%} | ||
{% for i in ei-%} | ||
{% if loop.index ==1 %} | ||
%% i %% | ||
{% else %} | ||
| %% i %% | ||
{% endif %} | ||
{% endfor %} | ||
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{% endfor %} | ||
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$u=|x_凸-x_{光源}|-\delta$ | ||
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${u}_1 = %% U_Convex[0][0] %% mm$ | ||
${u}_2 = %% U_Convex[0][1] %% mm$ | ||
${u}_3 = %% U_Convex[0][2] %% mm$ | ||
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$v=|x_屏-x_凸|$ | ||
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${v}_1 = %% V_Convex[0][0] %% mm$ | ||
${v}_2 = %% V_Convex[0][1] %% mm$ | ||
${v}_3 = %% V_Convex[0][2] %% mm$ | ||
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$$\because f = \displaystyle\frac{uv}{u+v}$$ | ||
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$\therefore {f}_1 = \displaystyle\frac{{u}_1{v}_1}{{u}_1+{v}_1} = %% F_Convex[0][0] %% mm$ ${f}_2 = %% F_Convex[0][1] %% mm$ $ {f}_3 = %% F_Convex[0][2] %% mm$ | ||
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$$\therefore {\bar{f}}_3 = \displaystyle\frac{{f}_1+{f}_2+{f}_3}{3} = %% F_Convex[0][3] %% mm$$ | ||
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$$\therefore {\bar{f}} = \displaystyle\frac{\bar{f}_1+\bar{f}_2+\bar{f}_3}{3} = %% Average_F_Convex %% mm$$ | ||
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2.物距像距法测凹透镜焦距 | ||
| 屏1/mm | 凹透镜1/mm | 凹透镜2/mm | 屏2/mm | 均值/mm | | ||
| ------- | ------- | ---------- | ---------- | ------- | | ||
{%for ei in EXPER_Concave |%} | ||
{% for i in ei-%} | ||
{% if loop.index ==1 %} | ||
%% i %% | ||
{% else %} | ||
| %% i %% | ||
{% endif %} | ||
{% endfor %} | ||
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{% endfor %} | ||
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$$u = {x}_{\text{屏1}} - {x}_{\text{均}}$$ | ||
${u}_1 = %% U_Concave[0] %% mm$ ${u}_2 = %% U_Concave[1] %% mm$ ${u}_3 = %% U_Concave[2] %% mm$ | ||
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$$v = {\mid} {x}_{\text{屏2}} - {x}_{\text{均}}{\mid}$$ | ||
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${v}_1 = %% V_Concave[0] %%mm$ ${v}_2 = %% V_Concave[1] %%mm$ ${v}_3 = %% V_Concave[2] %%mm$ | ||
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$${\because} f = \displaystyle\frac{uv}{u+v}$$ | ||
$${\therefore} {f}_1 = \displaystyle\frac{{u}_1{v}_1}{{u}_1+{v}_1} = %% F_Concave[0] %% mm$$ | ||
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${f}_2 = %% F_Concave[1] %% mm$ ${f}_3 = %% F_Concave[2] %% mm$ | ||
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$${\therefore}{\bar{f}} = \displaystyle\frac{{f}_1+{f}_2+{f}_3}{3} = %% AVERAGE_F_Concave %% mm$$ | ||
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实验2.自准直法测凸透镜焦距 | ||
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| 光源/mm | 凸透镜1/mm | 凸透镜2/mm | 均值/mm | | ||
| ------- | ---------- | ---------- | ------- | | ||
{%for ei in EXPER |%} | ||
{% for i in ei%} | ||
{% if loop.index ==1 %} | ||
%% i %% | ||
{% else %} | ||
| %% i %% | ||
{% endif %} | ||
{% endfor %} | ||
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{% endfor %} | ||
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$$\because f = {x}_{\text{光源}} - {x}_{\text{凸}} - \delta$$ | ||
$$\delta = %% DELTA %% mm$$ | ||
$$\therefore {f}_1 = %% F[0] %% mm $$ | ||
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${f}_2 = %% F[1] %% mm $ | ||
${f}_3 = %% F[2] %% mm $ | ||
${f}_4 = %% F[3] %% mm $ | ||
${f}_5 = %% F[4] %% mm $ | ||
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$$\therefore \bar{f} = \frac{{f}_1+{f}_2+{f}_3+{f}_4+{f}_5}{5} = %% AVERAGE_F %% mm$$ | ||
不确定度计算: | ||
A类不确定度 $${u}_a = \sqrt{\frac{\overline{x^{2}} - \bar{x} ^{2}}{k-1}} = %% UA_F %% mm$$ | ||
B类不确定度 $${u}_b = \frac{0.5}{\sqrt{3}} = %% UB_F %% mm$$ | ||
f的不确定度 | ||
$$u(f) = \sqrt{{u}_a ^ {2} + {u}_b ^ {2}} = %% UF %% mm$$ | ||
$$ {\therefore} \text{最终结果} f = (%% FINAL %% ) mm $$ | ||
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